499774681 has 16 divisors (see below), whose sum is σ = 585446400. Its totient is φ = 417706128.

The previous prime is 499774679. The next prime is 499774741. The reversal of 499774681 is 186477994.

It is not a de Polignac number, because 499774681 - 2¹ = 499774679 is a prime.

It is a super-2 number, since 2×499774681² = 499549463537303522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (499774601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251550 + ... + 253528.

It is an arithmetic number, because the mean of its divisors is an integer number (36590400).

Almost surely, 2^499774681 is an apocalyptic number.

It is an amenable number.

499774681 is a deficient number, since it is larger than the sum of its proper divisors (85671719).

499774681 is a wasteful number, since it uses less digits than its factorization.

499774681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868.

The product of its digits is 3048192, while the sum is 55.

The square root of 499774681 is about 22355.6409212530. The cubic root of 499774681 is about 793.5812841981.

The spelling of 499774681 in words is "four hundred ninety-nine million, seven hundred seventy-four thousand, six hundred eighty-one".