489398736 has 40 divisors (see below), whose sum is σ = 1305067264. Its totient is φ = 157870080.

The previous prime is 489398731. The next prime is 489398747. The reversal of 489398736 is 637893984.

It is a happy number.

It is a super-2 number, since 2×489398736² = 479022245596795392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489398731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162961 + ... + 165936.

Almost surely, 2^489398736 is an apocalyptic number.

It is an amenable number.

489398736 is an abundant number, since it is smaller than the sum of its proper divisors (815668528).

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

489398736 is a wasteful number, since it uses less digits than its factorization.

489398736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328939 (or 328933 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 57.

The square root of 489398736 is about 22122.3582829679. The cubic root of 489398736 is about 788.0509213231.

It can be divided in two parts, 48939 and 8736, that added together give a palindrome (57675).

The spelling of 489398736 in words is "four hundred eighty-nine million, three hundred ninety-eight thousand, seven hundred thirty-six".