1156428356 has 12 divisors (see below), whose sum is σ = 2024589840. Its totient is φ = 577974120.

The previous prime is 1156428337. The next prime is 1156428421. The reversal of 1156428356 is 6538246511.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48950 + ... + 68621.

It is an arithmetic number, because the mean of its divisors is an integer number (168715820).

Almost surely, 2^1156428356 is an apocalyptic number.

It is an amenable number.

1156428356 is a deficient number, since it is larger than the sum of its proper divisors (868161484).

1156428356 is a wasteful number, since it uses less digits than its factorization.

1156428356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120034 (or 120032 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 1156428356 is about 34006.2987694927. The cubic root of 1156428356 is about 1049.6380781367.

The spelling of 1156428356 in words is "one billion, one hundred fifty-six million, four hundred twenty-eight thousand, three hundred fifty-six".