656044 has 6 divisors (see below), whose sum is σ = 1148084. Its totient is φ = 328020.

The previous prime is 656039. The next prime is 656063. The reversal of 656044 is 440656.

It is a happy number.

It is an unprimeable number.

656044 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 82002 + ... + 82009.

2⁶⁵⁶⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

656044 is a deficient number, since it is larger than the sum of its proper divisors (492040).

656044 is a wasteful number, since it uses less digits than its factorization.

656044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164015 (or 164013 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 656044 is about 809.9654313611. The cubic root of 656044 is about 86.8915723263.

The spelling of 656044 in words is "six hundred fifty-six thousand, forty-four".