88972243440 has 80 divisors (see below), whose sum is σ = 277243186848. Its totient is φ = 23602987008.

The previous prime is 88972243429. The next prime is 88972243447. The reversal of 88972243440 is 4434227988.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88972243447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 914089 + ... + 1006728.

Almost surely, 2^88972243440 is an apocalyptic number.

88972243440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

88972243440 is an abundant number, since it is smaller than the sum of its proper divisors (188270943408).

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

88972243440 is a wasteful number, since it uses less digits than its factorization.

88972243440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921026 (or 1921020 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 51.

The spelling of 88972243440 in words is "eighty-eight billion, nine hundred seventy-two million, two hundred forty-three thousand, four hundred forty".