1979342976 has 128 divisors (see below), whose sum is σ = 5794367040. Its totient is φ = 594800640.

The previous prime is 1979342971. The next prime is 1979342977. The reversal of 1979342976 is 6792439791.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (1979342971) 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, 210046 + ... + 219266.

Almost surely, 2^1979342976 is an apocalyptic number.

1979342976 is a gapful number since it is divisible by the number (16) 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 1979342976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2897183520).

1979342976 is an abundant number, since it is smaller than the sum of its proper divisors (3815024064).

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

1979342976 is a wasteful number, since it uses less digits than its factorization.

1979342976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9294 (or 9282 counting only the distinct ones).

The product of its digits is 5143824, while the sum is 57.

The square root of 1979342976 is about 44489.8075518427. The cubic root of 1979342976 is about 1255.5683263738.

The spelling of 1979342976 in words is "one billion, nine hundred seventy-nine million, three hundred forty-two thousand, nine hundred seventy-six".