23401534 has 16 divisors (see below), whose sum is σ = 39447072. Its totient is φ = 10330848.

The previous prime is 23401523. The next prime is 23401549. The reversal of 23401534 is 43510432.

It is a congruent number.

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, 18969 + ... + 20164.

It is an arithmetic number, because the mean of its divisors is an integer number (2465442).

Almost surely, 2^23401534 is an apocalyptic number.

23401534 is a deficient number, since it is larger than the sum of its proper divisors (16045538).

23401534 is a wasteful number, since it uses less digits than its factorization.

23401534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39171.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 23401534 is about 4837.5132041163. The cubic root of 23401534 is about 286.0321006563.

Adding to 23401534 its reverse (43510432), we get a palindrome (66911966).

The spelling of 23401534 in words is "twenty-three million, four hundred one thousand, five hundred thirty-four".