356436 has 18 divisors (see below), whose sum is σ = 901082. Its totient is φ = 118800.

The previous prime is 356399. The next prime is 356441. The reversal of 356436 is 634653.

It can be written as a sum of positive squares in only one way, i.e., 352836 + 3600 = 594^2 + 60^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

356436 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4915 + ... + 4986.

2³⁵⁶⁴³⁶ is an apocalyptic number.

356436 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

356436 is an abundant number, since it is smaller than the sum of its proper divisors (544646).

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

356436 is a wasteful number, since it uses less digits than its factorization.

356436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9911 (or 9906 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 356436 is about 597.0226126371. The cubic root of 356436 is about 70.9023321512.

Subtracting from 356436 its sum of digits (27), we obtain a square (356409 = 597²).

It can be divided in two parts, 3564 and 36, that added together give a square (3600 = 60²).

The spelling of 356436 in words is "three hundred fifty-six thousand, four hundred thirty-six".