22360420 has 12 divisors (see below), whose sum is σ = 46956924. Its totient is φ = 8944160.

The previous prime is 22360381. The next prime is 22360441. The reversal of 22360420 is 2406322.

It can be written as a sum of positive squares in 2 ways, for example, as 13264164 + 9096256 = 3642^2 + 3016^2 .

It is an unprimeable number.

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, 558991 + ... + 559030.

It is an arithmetic number, because the mean of its divisors is an integer number (3913077).

Almost surely, 2^22360420 is an apocalyptic number.

22360420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22360420 is an abundant number, since it is smaller than the sum of its proper divisors (24596504).

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

22360420 is a wasteful number, since it uses less digits than its factorization.

22360420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118030 (or 1118028 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 22360420 is about 4728.6805770743. The cubic root of 22360420 is about 281.7258203939.

Adding to 22360420 its reverse (2406322), we get a palindrome (24766742).

The spelling of 22360420 in words is "twenty-two million, three hundred sixty thousand, four hundred twenty".