999504494 has 32 divisors (see below), whose sum is σ = 1609359840. Its totient is φ = 463905792.

The previous prime is 999504479. The next prime is 999504497. The reversal of 999504494 is 494405999.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999504497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1048322 + ... + 1049274.

It is an arithmetic number, because the mean of its divisors is an integer number (50292495).

Almost surely, 2^999504494 is an apocalyptic number.

999504494 is a deficient number, since it is larger than the sum of its proper divisors (609855346).

999504494 is a wasteful number, since it uses less digits than its factorization.

999504494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The square root of 999504494 is about 31614.9409931444. The cubic root of 999504494 is about 999.8348040451.

The spelling of 999504494 in words is "nine hundred ninety-nine million, five hundred four thousand, four hundred ninety-four".