456646 has 16 divisors (see below), whose sum is σ = 736560. Its totient is φ = 211680.

The previous prime is 456641. The next prime is 456647. The reversal of 456646 is 646654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (456641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2220 + ... + 2416.

It is an arithmetic number, because the mean of its divisors is an integer number (46035).

2⁴⁵⁶⁶⁴⁶ is an apocalyptic number.

456646 is a deficient number, since it is larger than the sum of its proper divisors (279914).

456646 is a wasteful number, since it uses less digits than its factorization.

456646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279.

The product of its digits is 17280, while the sum is 31.

The square root of 456646 is about 675.7558730784. The cubic root of 456646 is about 77.0063524303.

The spelling of 456646 in words is "four hundred fifty-six thousand, six hundred forty-six".