999402028 has 12 divisors (see below), whose sum is σ = 1749980680. Its totient is φ = 499407552.

The previous prime is 999402011. The next prime is 999402059. The reversal of 999402028 is 820204999.

It is a happy number.

999402028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65613 + ... + 79396.

Almost surely, 2^999402028 is an apocalyptic number.

It is an amenable number.

999402028 is a deficient number, since it is larger than the sum of its proper divisors (750578652).

999402028 is a wasteful number, since it uses less digits than its factorization.

999402028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146736 (or 146734 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 999402028 is about 31613.3204203545. The cubic root of 999402028 is about 999.8006362567.

The spelling of 999402028 in words is "nine hundred ninety-nine million, four hundred two thousand, twenty-eight".