999445492 has 12 divisors (see below), whose sum is σ = 1749333600. Its totient is φ = 499635896.

The previous prime is 999445483. The next prime is 999445493. The reversal of 999445492 is 294544999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999445493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9009 + ... + 45607.

It is an arithmetic number, because the mean of its divisors is an integer number (145777800).

Almost surely, 2^999445492 is an apocalyptic number.

It is an amenable number.

999445492 is a deficient number, since it is larger than the sum of its proper divisors (749888108).

999445492 is a wasteful number, since it uses less digits than its factorization.

999445492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43430 (or 43428 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 55.

The square root of 999445492 is about 31614.0078446248. The cubic root of 999445492 is about 999.8151298251.

The spelling of 999445492 in words is "nine hundred ninety-nine million, four hundred forty-five thousand, four hundred ninety-two".