23988090 has 32 divisors (see below), whose sum is σ = 65796480. Its totient is φ = 5482944.

The previous prime is 23988073. The next prime is 23988121. The reversal of 23988090 is 9088932.

23988090 = 708² + 709² + ... + 752².

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56905 + ... + 57324.

It is an arithmetic number, because the mean of its divisors is an integer number (2056140).

Almost surely, 2^23988090 is an apocalyptic number.

23988090 is an abundant number, since it is smaller than the sum of its proper divisors (41808390).

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

23988090 is a wasteful number, since it uses less digits than its factorization.

23988090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114246.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 23988090 is about 4897.7637754387. The cubic root of 23988090 is about 288.4021917433.

The spelling of 23988090 in words is "twenty-three million, nine hundred eighty-eight thousand, ninety".