475644 has 24 divisors (see below), whose sum is σ = 1195600. Its totient is φ = 146304.

The previous prime is 475639. The next prime is 475649. The reversal of 475644 is 446574.

It is an interprime number because it is at equal distance from previous prime (475639) and next prime (475649).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 475644.

It is not an unprimeable number, because it can be changed into a prime (475649) by changing a digit.

475644 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1369 + ... + 1680.

2⁴⁷⁵⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

475644 is an abundant number, since it is smaller than the sum of its proper divisors (719956).

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

475644 is a wasteful number, since it uses less digits than its factorization.

475644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3069 (or 3067 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 475644 is about 689.6694860584. The cubic root of 475644 is about 78.0597832272.

The spelling of 475644 in words is "four hundred seventy-five thousand, six hundred forty-four".