23440626436 has 24 divisors (see below), whose sum is σ = 42393516984. Its totient is φ = 11333253120.

The previous prime is 23440626413. The next prime is 23440626457. The reversal of 23440626436 is 63462604432.

It can be written as a sum of positive squares in 4 ways, for example, as 3814297600 + 19626328836 = 61760^2 + 140094^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613905 + ... + 650968.

It is an arithmetic number, because the mean of its divisors is an integer number (1766396541).

Almost surely, 2^23440626436 is an apocalyptic number.

It is an amenable number.

23440626436 is a deficient number, since it is larger than the sum of its proper divisors (18952890548).

23440626436 is a wasteful number, since it uses less digits than its factorization.

23440626436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265031 (or 1265029 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 40.

The spelling of 23440626436 in words is "twenty-three billion, four hundred forty million, six hundred twenty-six thousand, four hundred thirty-six".