23987490 has 32 divisors (see below), whose sum is σ = 59429376. Its totient is φ = 6190080.

The previous prime is 23987479. The next prime is 23987497. The reversal of 23987490 is 9478932.

It is not an unprimeable number, because it can be changed into a prime (23987497) 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, 11967 + ... + 13826.

It is an arithmetic number, because the mean of its divisors is an integer number (1857168).

Almost surely, 2^23987490 is an apocalyptic number.

23987490 is an abundant number, since it is smaller than the sum of its proper divisors (35441886).

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

23987490 is a wasteful number, since it uses less digits than its factorization.

23987490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25834.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 23987490 is about 4897.7025226120. The cubic root of 23987490 is about 288.3997871784.

The spelling of 23987490 in words is "twenty-three million, nine hundred eighty-seven thousand, four hundred ninety".