356646 has 8 divisors (see below), whose sum is σ = 713304. Its totient is φ = 118880.

The previous prime is 356621. The next prime is 356647. The reversal of 356646 is 646653.

It is a sphenic number, since it is the product of 3 distinct primes.

356646 is an admirable number.

It is an Ulam number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (356647) by changing a digit.

356646 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 3 ways as a sum of consecutive naturals, for example, 29715 + ... + 29726.

It is an arithmetic number, because the mean of its divisors is an integer number (89163).

2³⁵⁶⁶⁴⁶ is an apocalyptic number.

356646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

356646 is a wasteful number, since it uses less digits than its factorization.

356646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59446.

The product of its digits is 12960, while the sum is 30.

The square root of 356646 is about 597.1984594756. The cubic root of 356646 is about 70.9162538338.

The spelling of 356646 in words is "three hundred fifty-six thousand, six hundred forty-six".