23440637180 has 12 divisors (see below), whose sum is σ = 49225338120. Its totient is φ = 9376254864.

The previous prime is 23440637147. The next prime is 23440637183. The reversal of 23440637180 is 8173604432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23440637183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586015910 + ... + 586015949.

It is an arithmetic number, because the mean of its divisors is an integer number (4102111510).

Almost surely, 2^23440637180 is an apocalyptic number.

23440637180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23440637180 is an abundant number, since it is smaller than the sum of its proper divisors (25784700940).

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

23440637180 is a wasteful number, since it uses less digits than its factorization.

23440637180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172031868 (or 1172031866 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 23440637180 in words is "twenty-three billion, four hundred forty million, six hundred thirty-seven thousand, one hundred eighty".