23001538 has 16 divisors (see below), whose sum is σ = 39824064. Its totient is φ = 9759600.

The previous prime is 23001509. The next prime is 23001551. The reversal of 23001538 is 83510032.

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, 6720 + ... + 9547.

It is an arithmetic number, because the mean of its divisors is an integer number (2489004).

Almost surely, 2^23001538 is an apocalyptic number.

23001538 is a deficient number, since it is larger than the sum of its proper divisors (16822526).

23001538 is a wasteful number, since it uses less digits than its factorization.

23001538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16377.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 23001538 is about 4795.9918682166. The cubic root of 23001538 is about 284.3930367822.

The spelling of 23001538 in words is "twenty-three million, one thousand, five hundred thirty-eight".