23138634 has 16 divisors (see below), whose sum is σ = 47151072. Its totient is φ = 7567248.

The previous prime is 23138623. The next prime is 23138659. The reversal of 23138634 is 43683132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36064 + ... + 36699.

It is an arithmetic number, because the mean of its divisors is an integer number (2946942).

Almost surely, 2^23138634 is an apocalyptic number.

23138634 is an abundant number, since it is smaller than the sum of its proper divisors (24012438).

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

23138634 is a wasteful number, since it uses less digits than its factorization.

23138634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72821.

The product of its digits is 10368, while the sum is 30.

The square root of 23138634 is about 4810.2634023513. The cubic root of 23138634 is about 284.9569402474.

The spelling of 23138634 in words is "twenty-three million, one hundred thirty-eight thousand, six hundred thirty-four".