979502940 has 144 divisors (see below), whose sum is σ = 3388065408. Its totient is φ = 226916352.

The previous prime is 979502933. The next prime is 979502947. The reversal of 979502940 is 49205979.

It is an interprime number because it is at equal distance from previous prime (979502933) and next prime (979502947).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979502947) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27469 + ... + 52091.

It is an arithmetic number, because the mean of its divisors is an integer number (23528232).

Almost surely, 2^979502940 is an apocalyptic number.

979502940 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 979502940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1694032704).

979502940 is an abundant number, since it is smaller than the sum of its proper divisors (2408562468).

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

979502940 is a wasteful number, since it uses less digits than its factorization.

979502940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24668 (or 24663 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 979502940 is about 31297.0116784335. The cubic root of 979502940 is about 993.1204266708.

The spelling of 979502940 in words is "nine hundred seventy-nine million, five hundred two thousand, nine hundred forty".