499449440 has 48 divisors (see below), whose sum is σ = 1348516512. Its totient is φ = 171239424.

The previous prime is 499449427. The next prime is 499449451. The reversal of 499449440 is 44944994.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221849 + ... + 224088.

It is an arithmetic number, because the mean of its divisors is an integer number (28094094).

Almost surely, 2^499449440 is an apocalyptic number.

499449440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

499449440 is an abundant number, since it is smaller than the sum of its proper divisors (849067072).

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

499449440 is a wasteful number, since it uses less digits than its factorization.

499449440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445959 (or 445951 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 499449440 is about 22348.3654883305. The cubic root of 499449440 is about 793.4090991515.

The spelling of 499449440 in words is "four hundred ninety-nine million, four hundred forty-nine thousand, four hundred forty".