23225638 has 32 divisors (see below), whose sum is σ = 39247200. Its totient is φ = 10243584.

The previous prime is 23225627. The next prime is 23225647. The reversal of 23225638 is 83652232.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 101308 + ... + 101536.

It is an arithmetic number, because the mean of its divisors is an integer number (1226475).

Almost surely, 2^23225638 is an apocalyptic number.

23225638 is a deficient number, since it is larger than the sum of its proper divisors (16021562).

23225638 is a wasteful number, since it uses less digits than its factorization.

23225638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424.

The product of its digits is 17280, while the sum is 31.

The square root of 23225638 is about 4819.2984966694. The cubic root of 23225638 is about 285.3136507929.

The spelling of 23225638 in words is "twenty-three million, two hundred twenty-five thousand, six hundred thirty-eight".