23140524 has 36 divisors (see below), whose sum is σ = 59353112. Its totient is φ = 7011840.

The previous prime is 23140501. The next prime is 23140531. The reversal of 23140524 is 42504132.

It is a self number, because there is not a number n which added to its sum of digits gives 23140524.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6517 + ... + 9420.

Almost surely, 2^23140524 is an apocalyptic number.

It is an amenable number.

23140524 is an abundant number, since it is smaller than the sum of its proper divisors (36212588).

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

23140524 is a wasteful number, since it uses less digits than its factorization.

23140524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15966 (or 15953 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 23140524 is about 4810.4598532781. The cubic root of 23140524 is about 284.9646986131.

Adding to 23140524 its reverse (42504132), we get a palindrome (65644656).

It can be divided in two parts, 231 and 40524, that added together give a triangular number (40755 = T₂₈₅).

The spelling of 23140524 in words is "twenty-three million, one hundred forty thousand, five hundred twenty-four".