464644 has 12 divisors (see below), whose sum is σ = 861084. Its totient is φ = 218624.

The previous prime is 464621. The next prime is 464647. The reversal of 464644 is 446464.

It can be written as a sum of positive squares in 2 ways, for example, as 202500 + 262144 = 450^2 + 512^2 .

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (464647) by changing a digit.

464644 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, 3349 + ... + 3484.

It is an arithmetic number, because the mean of its divisors is an integer number (71757).

2⁴⁶⁴⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

464644 is a deficient number, since it is larger than the sum of its proper divisors (396440).

464644 is a wasteful number, since it uses less digits than its factorization.

464644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6854 (or 6852 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 464644 is about 681.6480030045. The cubic root of 464644 is about 77.4533329871.

The spelling of 464644 in words is "four hundred sixty-four thousand, six hundred forty-four".