23440986 has 12 divisors (see below), whose sum is σ = 50788842. Its totient is φ = 7813656.

The previous prime is 23440973. The next prime is 23440987. The reversal of 23440986 is 68904432.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19316025 + 4124961 = 4395^2 + 2031^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23440986.

It is not an unprimeable number, because it can be changed into a prime (23440987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 651121 + ... + 651156.

Almost surely, 2^23440986 is an apocalyptic number.

23440986 is an abundant number, since it is smaller than the sum of its proper divisors (27347856).

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

23440986 is a wasteful number, since it uses less digits than its factorization.

23440986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302285 (or 1302282 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 23440986 is about 4841.5892019047. The cubic root of 23440986 is about 286.1927482864.

The spelling of 23440986 in words is "twenty-three million, four hundred forty thousand, nine hundred eighty-six".