491515028 has 24 divisors (see below), whose sum is σ = 906249120. Its totient is φ = 232610400.

The previous prime is 491514967. The next prime is 491515039. The reversal of 491515028 is 820515194.

It is a congruent number.

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, 108203 + ... + 112653.

It is an arithmetic number, because the mean of its divisors is an integer number (37760380).

Almost surely, 2^491515028 is an apocalyptic number.

It is an amenable number.

491515028 is a deficient number, since it is larger than the sum of its proper divisors (414734092).

491515028 is a wasteful number, since it uses less digits than its factorization.

491515028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5927 (or 5925 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 491515028 is about 22170.1382043505. The cubic root of 491515028 is about 789.1852027511.

The spelling of 491515028 in words is "four hundred ninety-one million, five hundred fifteen thousand, twenty-eight".