1974579456 has 36 divisors (see below), whose sum is σ = 5255262992. Its totient is φ = 658192896.

The previous prime is 1974579449. The next prime is 1974579457. The reversal of 1974579456 is 6549754791.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1974579396 and 1974579405.

It is not an unprimeable number, because it can be changed into a prime (1974579457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1284766 + ... + 1286301.

Almost surely, 2^1974579456 is an apocalyptic number.

1974579456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1974579456 is an abundant number, since it is smaller than the sum of its proper divisors (3280683536).

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

1974579456 is an equidigital number, since it uses as much as digits as its factorization.

1974579456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571086 (or 2571072 counting only the distinct ones).

The product of its digits is 9525600, while the sum is 57.

The square root of 1974579456 is about 44436.2403450157. The cubic root of 1974579456 is about 1254.5602933610.

The spelling of 1974579456 in words is "one billion, nine hundred seventy-four million, five hundred seventy-nine thousand, four hundred fifty-six".