999015042 has 16 divisors (see below), whose sum is σ = 2009996352. Its totient is φ = 331010640.

The previous prime is 999015029. The next prime is 999015053. The reversal of 999015042 is 240510999.

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, 497509 + ... + 499512.

It is an arithmetic number, because the mean of its divisors is an integer number (125624772).

Almost surely, 2^999015042 is an apocalyptic number.

999015042 is an abundant number, since it is smaller than the sum of its proper divisors (1010981310).

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

999015042 is a wasteful number, since it uses less digits than its factorization.

999015042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997193.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 999015042 is about 31607.1992115720. The cubic root of 999015042 is about 999.6715728141.

The spelling of 999015042 in words is "nine hundred ninety-nine million, fifteen thousand, forty-two".