999992256 has 28 divisors (see below), whose sum is σ = 2645813352. Its totient is φ = 333330688.

The previous prime is 999992221. The next prime is 999992263. The reversal of 999992256 is 652299999.

It is a self number, because there is not a number n which added to its sum of digits gives 999992256.

It is a congruent number.

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, 2603955 + ... + 2604338.

It is an arithmetic number, because the mean of its divisors is an integer number (94493334).

Almost surely, 2^999992256 is an apocalyptic number.

999992256 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

999992256 is an abundant number, since it is smaller than the sum of its proper divisors (1645821096).

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

999992256 is a wasteful number, since it uses less digits than its factorization.

999992256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5208308 (or 5208298 counting only the distinct ones).

The product of its digits is 7085880, while the sum is 60.

The square root of 999992256 is about 31622.6541580557. The cubic root of 999992256 is about 999.9974186600.

The spelling of 999992256 in words is "nine hundred ninety-nine million, nine hundred ninety-two thousand, two hundred fifty-six".