1979398032 has 40 divisors (see below), whose sum is σ = 5335771584. Its totient is φ = 631112064.

The previous prime is 1979397989. The next prime is 1979398037. The reversal of 1979398032 is 2308939791.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1979398037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 895363 + ... + 897570.

Almost surely, 2^1979398032 is an apocalyptic number.

1979398032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1979398032 is an abundant number, since it is smaller than the sum of its proper divisors (3356373552).

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

1979398032 is a wasteful number, since it uses less digits than its factorization.

1979398032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792967 (or 1792961 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 1979398032 is about 44490.4262960022. The cubic root of 1979398032 is about 1255.5799675985.

The spelling of 1979398032 in words is "one billion, nine hundred seventy-nine million, three hundred ninety-eight thousand, thirty-two".