499781068 has 24 divisors (see below), whose sum is σ = 893645312. Its totient is φ = 244508544.

The previous prime is 499781063. The next prime is 499781071. The reversal of 499781068 is 860187994.

It is a happy number.

It is a super-2 number, since 2×499781068² = 499562231862441248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (499781063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30346 + ... + 43822.

Almost surely, 2^499781068 is an apocalyptic number.

It is an amenable number.

499781068 is a deficient number, since it is larger than the sum of its proper divisors (393864244).

499781068 is a wasteful number, since it uses less digits than its factorization.

499781068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13681 (or 13679 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 499781068 is about 22355.7837706487. The cubic root of 499781068 is about 793.5846647763.

The spelling of 499781068 in words is "four hundred ninety-nine million, seven hundred eighty-one thousand, sixty-eight".