499264731 has 24 divisors (see below), whose sum is σ = 826034144. Its totient is φ = 284653440.

The previous prime is 499264697. The next prime is 499264741. The reversal of 499264731 is 137462994.

It is a happy number.

It is not a de Polignac number, because 499264731 - 2²³ = 490876123 is a prime.

It is a super-2 number, since 2×499264731² = 498530543241004722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499264741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20121 + ... + 37461.

Almost surely, 2^499264731 is an apocalyptic number.

499264731 is a deficient number, since it is larger than the sum of its proper divisors (326769413).

499264731 is a wasteful number, since it uses less digits than its factorization.

499264731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17811 (or 17808 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 499264731 is about 22344.2326115712. The cubic root of 499264731 is about 793.3112795264.

The spelling of 499264731 in words is "four hundred ninety-nine million, two hundred sixty-four thousand, seven hundred thirty-one".