491386492 has 24 divisors (see below), whose sum is σ = 887795216. Its totient is φ = 237800448.

The previous prime is 491386481. The next prime is 491386501. The reversal of 491386492 is 294683194.

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, 19963 + ... + 37165.

Almost surely, 2^491386492 is an apocalyptic number.

It is an amenable number.

491386492 is a deficient number, since it is larger than the sum of its proper divisors (396408724).

491386492 is a wasteful number, since it uses less digits than its factorization.

491386492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17437 (or 17435 counting only the distinct ones).

The product of its digits is 373248, while the sum is 46.

The square root of 491386492 is about 22167.2391605270. The cubic root of 491386492 is about 789.1164035302.

The spelling of 491386492 in words is "four hundred ninety-one million, three hundred eighty-six thousand, four hundred ninety-two".