499681242 has 24 divisors (see below), whose sum is σ = 1107822144. Its totient is φ = 162686664.

The previous prime is 499681213. The next prime is 499681261. The reversal of 499681242 is 242186994.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322018 + ... + 323565.

It is an arithmetic number, because the mean of its divisors is an integer number (46159256).

Almost surely, 2^499681242 is an apocalyptic number.

499681242 is an abundant number, since it is smaller than the sum of its proper divisors (608140902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499681242 is a wasteful number, since it uses less digits than its factorization.

499681242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645634 (or 645631 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 499681242 is about 22353.5509930749. The cubic root of 499681242 is about 793.5318245342.

The spelling of 499681242 in words is "four hundred ninety-nine million, six hundred eighty-one thousand, two hundred forty-two".