8972858440 has 384 divisors, whose sum is σ = 26930776320. Its totient is φ = 2661120000.

The previous prime is 8972858431. The next prime is 8972858441. The reversal of 8972858440 is 448582798.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8972858441) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 35748315 + ... + 35748565.

It is an arithmetic number, because the mean of its divisors is an integer number (70132230).

Almost surely, 2^8972858440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8972858440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13465388160).

8972858440 is an abundant number, since it is smaller than the sum of its proper divisors (17957917880).

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

8972858440 is a wasteful number, since it uses less digits than its factorization.

8972858440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 55.

The square root of 8972858440 is about 94725.1732117709. The cubic root of 8972858440 is about 2077.9907279451.

The spelling of 8972858440 in words is "eight billion, nine hundred seventy-two million, eight hundred fifty-eight thousand, four hundred forty".