489903972 has 12 divisors (see below), whose sum is σ = 1143109296. Its totient is φ = 163301320.

The previous prime is 489903959. The next prime is 489904001. The reversal of 489903972 is 279309984.

It is a tau number, because it is divible by the number of its divisors (12).

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, 20412654 + ... + 20412677.

It is an arithmetic number, because the mean of its divisors is an integer number (95259108).

Almost surely, 2^489903972 is an apocalyptic number.

It is an amenable number.

489903972 is an abundant number, since it is smaller than the sum of its proper divisors (653205324).

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

489903972 is a wasteful number, since it uses less digits than its factorization.

489903972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40825338 (or 40825336 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 489903972 is about 22133.7744634755. The cubic root of 489903972 is about 788.3220123118.

The spelling of 489903972 in words is "four hundred eighty-nine million, nine hundred three thousand, nine hundred seventy-two".