23150538 has 24 divisors (see below), whose sum is σ = 51012000. Its totient is φ = 7585704.

The previous prime is 23150509. The next prime is 23150539. The reversal of 23150538 is 83505132.

It is not an unprimeable number, because it can be changed into a prime (23150539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9838 + ... + 11961.

It is an arithmetic number, because the mean of its divisors is an integer number (2125500).

Almost surely, 2^23150538 is an apocalyptic number.

23150538 is an abundant number, since it is smaller than the sum of its proper divisors (27861462).

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

23150538 is a wasteful number, since it uses less digits than its factorization.

23150538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21866 (or 21863 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 23150538 is about 4811.5005975267. The cubic root of 23150538 is about 285.0057985893.

The spelling of 23150538 in words is "twenty-three million, one hundred fifty thousand, five hundred thirty-eight".