22629285 has 72 divisors (see below), whose sum is σ = 47548800. Its totient is φ = 9751104.

The previous prime is 22629283. The next prime is 22629289. The reversal of 22629285 is 58292622.

22629285 is a `hidden beast` number, since 2 + 2 + 629 + 28 + 5 = 666.

It is not a de Polignac number, because 22629285 - 2¹ = 22629283 is a prime.

It is a super-2 number, since 2×22629285² = 1024169079222450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22629281) 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 71 ways as a sum of consecutive naturals, for example, 113616 + ... + 113814.

It is an arithmetic number, because the mean of its divisors is an integer number (660400).

Almost surely, 2^22629285 is an apocalyptic number.

It is an amenable number.

22629285 is an abundant number, since it is smaller than the sum of its proper divisors (24919515).

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

22629285 is a wasteful number, since it uses less digits than its factorization.

22629285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 233 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 22629285 is about 4757.0248054850. The cubic root of 22629285 is about 282.8504956022.

The spelling of 22629285 in words is "twenty-two million, six hundred twenty-nine thousand, two hundred eighty-five".