1974813256 has 32 divisors (see below), whose sum is σ = 3992405760. Its totient is φ = 910354752.

The previous prime is 1974813251. The next prime is 1974813259. The reversal of 1974813256 is 6523184791.

It is not an unprimeable number, because it can be changed into a prime (1974813251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78751 + ... + 100753.

It is an arithmetic number, because the mean of its divisors is an integer number (124762680).

Almost surely, 2^1974813256 is an apocalyptic number.

It is an amenable number.

1974813256 is an abundant number, since it is smaller than the sum of its proper divisors (2017592504).

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

1974813256 is a wasteful number, since it uses less digits than its factorization.

1974813256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22885 (or 22881 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 1974813256 is about 44438.8710027606. The cubic root of 1974813256 is about 1254.6098067936.

The spelling of 1974813256 in words is "one billion, nine hundred seventy-four million, eight hundred thirteen thousand, two hundred fifty-six".