489638384 has 20 divisors (see below), whose sum is σ = 949017384. Its totient is φ = 244730688.

The previous prime is 489638363. The next prime is 489638431. The reversal of 489638384 is 483836984.

It is a super-2 number, since 2×489638384² = 479491494172262912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85334 + ... + 90890.

Almost surely, 2^489638384 is an apocalyptic number.

It is an amenable number.

489638384 is a deficient number, since it is larger than the sum of its proper divisors (459379000).

489638384 is a wasteful number, since it uses less digits than its factorization.

489638384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11072 (or 11066 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 53.

The square root of 489638384 is about 22127.7740407841. The cubic root of 489638384 is about 788.1795308430.

The spelling of 489638384 in words is "four hundred eighty-nine million, six hundred thirty-eight thousand, three hundred eighty-four".