890444992 has 56 divisors (see below), whose sum is σ = 1855134720. Its totient is φ = 423502080.

The previous prime is 890444983. The next prime is 890445001. The reversal of 890444992 is 299444098.

It is an interprime number because it is at equal distance from previous prime (890444983) and next prime (890445001).

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, 113253 + ... + 120859.

Almost surely, 2^890444992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 890444992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (927567360).

890444992 is an abundant number, since it is smaller than the sum of its proper divisors (964689728).

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

890444992 is a wasteful number, since it uses less digits than its factorization.

890444992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7709 (or 7699 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 890444992 is about 29840.3249312068. The cubic root of 890444992 is about 962.0604587098.

The spelling of 890444992 in words is "eight hundred ninety million, four hundred forty-four thousand, nine hundred ninety-two".