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22330460 = 2251116523
BaseRepresentation
bin101010100101…
…1110001011100
31120000111122002
41111023301130
521204033320
62114341432
7360543245
oct125136134
946014562
1022330460
1111672229
12758a878
13481b0b9
142d73ccc
151e61675
hex154bc5c

22330460 has 12 divisors (see below), whose sum is σ = 46894008. Its totient is φ = 8932176.

The previous prime is 22330457. The next prime is 22330463. The reversal of 22330460 is 6403322.

It is an interprime number because it is at equal distance from previous prime (22330457) and next prime (22330463).

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1116523 = 22330460 / (2 + 2 + 3 + 3 + 0 + 4 + 6 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22330463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558242 + ... + 558281.

It is an arithmetic number, because the mean of its divisors is an integer number (3907834).

Almost surely, 222330460 is an apocalyptic number.

22330460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22330460 is an abundant number, since it is smaller than the sum of its proper divisors (24563548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22330460 is a wasteful number, since it uses less digits than its factorization.

22330460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116532 (or 1116530 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 22330460 is about 4725.5116125135. The cubic root of 22330460 is about 281.5999390657.

Adding to 22330460 its reverse (6403322), we get a palindrome (28733782).

The spelling of 22330460 in words is "twenty-two million, three hundred thirty thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 1116523 2233046 4466092 5582615 11165230 22330460