23990502 has 32 divisors (see below), whose sum is σ = 53481600. Its totient is φ = 7129728.

The previous prime is 23990459. The next prime is 23990509. The reversal of 23990502 is 20509932.

It is a self number, because there is not a number n which added to its sum of digits gives 23990502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23990509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4252 + ... + 8127.

It is an arithmetic number, because the mean of its divisors is an integer number (1671300).

Almost surely, 2^23990502 is an apocalyptic number.

23990502 is an abundant number, since it is smaller than the sum of its proper divisors (29491098).

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

23990502 is a wasteful number, since it uses less digits than its factorization.

23990502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12420.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 23990502 is about 4898.0100040731. The cubic root of 23990502 is about 288.4118576896.

The spelling of 23990502 in words is "twenty-three million, nine hundred ninety thousand, five hundred two".