477221644 has 24 divisors (see below), whose sum is σ = 854784000. Its totient is φ = 233020176.

The previous prime is 477221639. The next prime is 477221663. The reversal of 477221644 is 446122774.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91269 + ... + 96355.

It is an arithmetic number, because the mean of its divisors is an integer number (35616000).

Almost surely, 2^477221644 is an apocalyptic number.

It is an amenable number.

477221644 is a deficient number, since it is larger than the sum of its proper divisors (377562356).

477221644 is a wasteful number, since it uses less digits than its factorization.

477221644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5637 (or 5635 counting only the distinct ones).

The product of its digits is 75264, while the sum is 37.

The square root of 477221644 is about 21845.4032693379. The cubic root of 477221644 is about 781.4599240976.

The spelling of 477221644 in words is "four hundred seventy-seven million, two hundred twenty-one thousand, six hundred forty-four".