999469998 has 24 divisors (see below), whose sum is σ = 2170678536. Its totient is φ = 332362800.

The previous prime is 999469973. The next prime is 999470009. The reversal of 999469998 is 899964999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58368 + ... + 73523.

It is an arithmetic number, because the mean of its divisors is an integer number (90444939).

Almost surely, 2^999469998 is an apocalyptic number.

999469998 is an abundant number, since it is smaller than the sum of its proper divisors (1171208538).

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

999469998 is a wasteful number, since it uses less digits than its factorization.

999469998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132320 (or 132317 counting only the distinct ones).

The product of its digits is 102036672, while the sum is 72.

The square root of 999469998 is about 31614.3954236041. The cubic root of 999469998 is about 999.8233014461.

The spelling of 999469998 in words is "nine hundred ninety-nine million, four hundred sixty-nine thousand, nine hundred ninety-eight".