971298840 has 64 divisors (see below), whose sum is σ = 2992664160. Its totient is φ = 252011520.

The previous prime is 971298817. The next prime is 971298857. The reversal of 971298840 is 48892179.

It is a self number, because there is not a number n which added to its sum of digits gives 971298840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104941 + ... + 113820.

Almost surely, 2^971298840 is an apocalyptic number.

It is an amenable number.

971298840 is an abundant number, since it is smaller than the sum of its proper divisors (2021365320).

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

971298840 is a wasteful number, since it uses less digits than its factorization.

971298840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218812 (or 218808 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 971298840 is about 31165.6676488729. The cubic root of 971298840 is about 990.3399302009.

It can be divided in two parts, 9712988 and 40, that added together give a triangular number (9713028 = T₄₄₀₇).

The spelling of 971298840 in words is "nine hundred seventy-one million, two hundred ninety-eight thousand, eight hundred forty".