1978974504 has 96 divisors (see below), whose sum is σ = 5985863520. Its totient is φ = 608907456.

The previous prime is 1978974499. The next prime is 1978974521. The reversal of 1978974504 is 4054798791.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13882 + ... + 64425.

It is an arithmetic number, because the mean of its divisors is an integer number (62352745).

Almost surely, 2^1978974504 is an apocalyptic number.

It is an amenable number.

1978974504 is an abundant number, since it is smaller than the sum of its proper divisors (4006889016).

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

1978974504 is a wasteful number, since it uses less digits than its factorization.

1978974504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78341 (or 78325 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The square root of 1978974504 is about 44485.6662757792. Note that the first 3 decimals coincide. The cubic root of 1978974504 is about 1255.4904098650.

The spelling of 1978974504 in words is "one billion, nine hundred seventy-eight million, nine hundred seventy-four thousand, five hundred four".