356642 has 32 divisors (see below), whose sum is σ = 665280. Its totient is φ = 141120.

The previous prime is 356621. The next prime is 356647. The reversal of 356642 is 246653.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a nialpdrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 356642.

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

356642 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 15 ways as a sum of consecutive naturals, for example, 8273 + ... + 8315.

It is an arithmetic number, because the mean of its divisors is an integer number (20790).

2³⁵⁶⁶⁴² is an apocalyptic number.

356642 is a deficient number, since it is larger than the sum of its proper divisors (308638).

356642 is a wasteful number, since it uses less digits than its factorization.

356642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98.

The product of its digits is 4320, while the sum is 26.

The square root of 356642 is about 597.1951104957. The cubic root of 356642 is about 70.9159887100.

The spelling of 356642 in words is "three hundred fifty-six thousand, six hundred forty-two".