881090992 has 40 divisors (see below), whose sum is σ = 1842783840. Its totient is φ = 406855680.

The previous prime is 881090989. The next prime is 881091017. The reversal of 881090992 is 299090188.

It is a happy number.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30609 + ... + 51952.

It is an arithmetic number, because the mean of its divisors is an integer number (46069596).

Almost surely, 2^881090992 is an apocalyptic number.

It is an amenable number.

881090992 is an abundant number, since it is smaller than the sum of its proper divisors (961692848).

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

881090992 is a wasteful number, since it uses less digits than its factorization.

881090992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82621 (or 82615 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 46.

The square root of 881090992 is about 29683.1769189216. The cubic root of 881090992 is about 958.6798230771.

The spelling of 881090992 in words is "eight hundred eighty-one million, ninety thousand, nine hundred ninety-two".