499810978 has 16 divisors (see below), whose sum is σ = 757594296. Its totient is φ = 247287040.

The previous prime is 499810963. The next prime is 499811063. The reversal of 499810978 is 879018994.

It can be written as a sum of positive squares in 4 ways, for example, as 167003929 + 332807049 = 12923^2 + 18243^2 .

It is a super-2 number, since 2×499810978² = 499622027458632968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173268 + ... + 176128.

Almost surely, 2^499810978 is an apocalyptic number.

499810978 is a deficient number, since it is larger than the sum of its proper divisors (257783318).

499810978 is a wasteful number, since it uses less digits than its factorization.

499810978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749.

The product of its (nonzero) digits is 1306368, while the sum is 55.

The square root of 499810978 is about 22356.4527150440. The cubic root of 499810978 is about 793.6004954705.

The spelling of 499810978 in words is "four hundred ninety-nine million, eight hundred ten thousand, nine hundred seventy-eight".