22307052 has 12 divisors (see below), whose sum is σ = 52049816. Its totient is φ = 7435680.

The previous prime is 22307027. The next prime is 22307057. The reversal of 22307052 is 25070322.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×22307052³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22307057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 929449 + ... + 929472.

Almost surely, 2^22307052 is an apocalyptic number.

It is an amenable number.

22307052 is an abundant number, since it is smaller than the sum of its proper divisors (29742764).

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

22307052 is a wasteful number, since it uses less digits than its factorization.

22307052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858928 (or 1858926 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 22307052 is about 4723.0341942442. The cubic root of 22307052 is about 281.5015085516.

Adding to 22307052 its reverse (25070322), we get a palindrome (47377374).

The spelling of 22307052 in words is "twenty-two million, three hundred seven thousand, fifty-two".