499139774 has 24 divisors (see below), whose sum is σ = 874155600. Its totient is φ = 213666264.

The previous prime is 499139723. The next prime is 499139779. The reversal of 499139774 is 477931994.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499139779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 584732 + ... + 585584.

It is an arithmetic number, because the mean of its divisors is an integer number (36423150).

Almost surely, 2^499139774 is an apocalyptic number.

499139774 is a deficient number, since it is larger than the sum of its proper divisors (375015826).

499139774 is an frugal number, since it uses more digits than its factorization.

499139774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729 (or 862 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 53.

The square root of 499139774 is about 22341.4362564272. The cubic root of 499139774 is about 793.2450901465.

The spelling of 499139774 in words is "four hundred ninety-nine million, one hundred thirty-nine thousand, seven hundred seventy-four".