12475638 has 24 divisors (see below), whose sum is σ = 30892368. Its totient is φ = 3564432.

The previous prime is 12475513. The next prime is 12475649. The reversal of 12475638 is 83657421.

12475638 is a `hidden beast` number, since 12 + 4 + 7 + 5 + 638 = 666.

It is a congruent 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, 49381 + ... + 49632.

It is an arithmetic number, because the mean of its divisors is an integer number (1287182).

Almost surely, 2^12475638 is an apocalyptic number.

12475638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12475638 is an abundant number, since it is smaller than the sum of its proper divisors (18416730).

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

12475638 is a wasteful number, since it uses less digits than its factorization.

12475638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99028 (or 99025 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 12475638 is about 3532.0869185228. The cubic root of 12475638 is about 231.9285724426.

The spelling of 12475638 in words is "twelve million, four hundred seventy-five thousand, six hundred thirty-eight".