22438475 has 12 divisors (see below), whose sum is σ = 28472136. Its totient is φ = 17532480.

The previous prime is 22438459. The next prime is 22438511. The reversal of 22438475 is 57483422.

It is not a de Polignac number, because 22438475 - 2⁴ = 22438459 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9362 + ... + 11511.

It is an arithmetic number, because the mean of its divisors is an integer number (2372678).

Almost surely, 2^22438475 is an apocalyptic number.

22438475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22438475 is a deficient number, since it is larger than the sum of its proper divisors (6033661).

22438475 is a wasteful number, since it uses less digits than its factorization.

22438475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20926 (or 20921 counting only the distinct ones).

The product of its digits is 53760, while the sum is 35.

The square root of 22438475 is about 4736.9267463198. The cubic root of 22438475 is about 282.0532526898.

The spelling of 22438475 in words is "twenty-two million, four hundred thirty-eight thousand, four hundred seventy-five".