1979975320 has 16 divisors (see below), whose sum is σ = 4454944560. Its totient is φ = 791990112.

The previous prime is 1979975297. The next prime is 1979975359. The reversal of 1979975320 is 235799791.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24749652 + ... + 24749731.

It is an arithmetic number, because the mean of its divisors is an integer number (278434035).

Almost surely, 2^1979975320 is an apocalyptic number.

1979975320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1979975320 is an abundant number, since it is smaller than the sum of its proper divisors (2474969240).

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

1979975320 is a wasteful number, since it uses less digits than its factorization.

1979975320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49499394 (or 49499390 counting only the distinct ones).

The product of its (nonzero) digits is 1071630, while the sum is 52.

The square root of 1979975320 is about 44496.9136008330. The cubic root of 1979975320 is about 1255.7020183066.

The spelling of 1979975320 in words is "one billion, nine hundred seventy-nine million, nine hundred seventy-five thousand, three hundred twenty".