356556 has 24 divisors (see below), whose sum is σ = 852544. Its totient is φ = 115920.

The previous prime is 356549. The next prime is 356561. The reversal of 356556 is 655653.

It is a super-2 number, since 2×356556² = 254264362272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 3¹⁰ + 5² + 5⁴ + 6⁴ + 5⁶ + 6⁷ .

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, 171 + ... + 861.

2³⁵⁶⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

356556 is an abundant number, since it is smaller than the sum of its proper divisors (495988).

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

356556 is a wasteful number, since it uses less digits than its factorization.

356556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741 (or 739 counting only the distinct ones).

The product of its digits is 13500, while the sum is 30.

The square root of 356556 is about 597.1231028858. The cubic root of 356556 is about 70.9102880678.

The spelling of 356556 in words is "three hundred fifty-six thousand, five hundred fifty-six".