1477489644 has 72 divisors (see below), whose sum is σ = 3785155920. Its totient is φ = 485885952.

The previous prime is 1477489633. The next prime is 1477489649. The reversal of 1477489644 is 4469847741.

1477489644 is a `hidden beast` number, since 1 + 477 + 48 + 96 + 44 = 666.

It is not an unprimeable number, because it can be changed into a prime (1477489649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1825912 + ... + 1826720.

It is an arithmetic number, because the mean of its divisors is an integer number (52571610).

Almost surely, 2^1477489644 is an apocalyptic number.

It is an amenable number.

1477489644 is an abundant number, since it is smaller than the sum of its proper divisors (2307666276).

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

1477489644 is a wasteful number, since it uses less digits than its factorization.

1477489644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439 (or 1434 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The square root of 1477489644 is about 38438.1274778052. The cubic root of 1477489644 is about 1138.9591515383.

The spelling of 1477489644 in words is "one billion, four hundred seventy-seven million, four hundred eighty-nine thousand, six hundred forty-four".