356385 has 16 divisors (see below), whose sum is σ = 595584. Its totient is φ = 181632.

The previous prime is 356351. The next prime is 356387. The reversal of 356385 is 583653.

It is not a de Polignac number, because 356385 - 2⁸ = 356129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (356387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172 + ... + 861.

It is an arithmetic number, because the mean of its divisors is an integer number (37224).

2³⁵⁶³⁸⁵ is an apocalyptic number.

356385 is the 345-th octagonal number.

It is an amenable number.

356385 is a deficient number, since it is larger than the sum of its proper divisors (239199).

356385 is a wasteful number, since it uses less digits than its factorization.

356385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064.

The product of its digits is 10800, while the sum is 30.

The square root of 356385 is about 596.9798991591. The cubic root of 356385 is about 70.8989503460.

It can be divided in two parts, 356 and 385, that added together give a triangular number (741 = T₃₈).

The spelling of 356385 in words is "three hundred fifty-six thousand, three hundred eighty-five".