499090418 has 6 divisors (see below), whose sum is σ = 748683021. Its totient is φ = 249529412.

The previous prime is 499090411. The next prime is 499090429. The reversal of 499090418 is 814090994.

It can be written as a sum of positive squares in 2 ways, for example, as 471454369 + 27636049 = 21713^2 + 5257^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=15797.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499090411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 23696 + ... + 39492.

Almost surely, 2^499090418 is an apocalyptic number.

499090418 is a deficient number, since it is larger than the sum of its proper divisors (249592603).

499090418 is an frugal number, since it uses more digits than its factorization.

499090418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31596 (or 15799 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 499090418 is about 22340.3316448078. The cubic root of 499090418 is about 793.2189433655.

Multiplying 499090418 by its product of nonzero digits (93312), we get a square (46571125084416 = 6824304²).

The spelling of 499090418 in words is "four hundred ninety-nine million, ninety thousand, four hundred eighteen".