23400638 has 8 divisors (see below), whose sum is σ = 35141232. Its totient is φ = 11686896.

The previous prime is 23400617. The next prime is 23400649. The reversal of 23400638 is 83600432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4370 + ... + 8117.

It is an arithmetic number, because the mean of its divisors is an integer number (4392654).

Almost surely, 2^23400638 is an apocalyptic number.

23400638 is a deficient number, since it is larger than the sum of its proper divisors (11740594).

23400638 is a wasteful number, since it uses less digits than its factorization.

23400638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13426.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 23400638 is about 4837.4205936635. The cubic root of 23400638 is about 286.0284500689.

The spelling of 23400638 in words is "twenty-three million, four hundred thousand, six hundred thirty-eight".