1556830748 has 24 divisors (see below), whose sum is σ = 2973210240. Its totient is φ = 707393520.

The previous prime is 1556830733. The next prime is 1556830753. The reversal of 1556830748 is 8470386551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171713 + ... + 180551.

It is an arithmetic number, because the mean of its divisors is an integer number (123883760).

Almost surely, 2^1556830748 is an apocalyptic number.

It is an amenable number.

1556830748 is a deficient number, since it is larger than the sum of its proper divisors (1416379492).

1556830748 is a wasteful number, since it uses less digits than its factorization.

1556830748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12857 (or 12855 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The square root of 1556830748 is about 39456.6945903987. The cubic root of 1556830748 is about 1158.9920763121.

The spelling of 1556830748 in words is "one billion, five hundred fifty-six million, eight hundred thirty thousand, seven hundred forty-eight".