23940490 has 32 divisors (see below), whose sum is σ = 49953024. Its totient is φ = 8090880.

The previous prime is 23940481. The next prime is 23940503. The reversal of 23940490 is 9404932.

It is a super-2 number, since 2×23940490² = 1146294122880200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2562 + ... + 7378.

It is an arithmetic number, because the mean of its divisors is an integer number (1561032).

Almost surely, 2^23940490 is an apocalyptic number.

23940490 is an abundant number, since it is smaller than the sum of its proper divisors (26012534).

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

23940490 is a wasteful number, since it uses less digits than its factorization.

23940490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4902.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 23940490 is about 4892.9020018799. The cubic root of 23940490 is about 288.2113048691.

The spelling of 23940490 in words is "twenty-three million, nine hundred forty thousand, four hundred ninety".