981032988 has 48 divisors (see below), whose sum is σ = 2505596576. Its totient is φ = 296904960.

The previous prime is 981032977. The next prime is 981032989. The reversal of 981032988 is 889230189.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981032989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42031 + ... + 61062.

Almost surely, 2^981032988 is an apocalyptic number.

It is an amenable number.

981032988 is an abundant number, since it is smaller than the sum of its proper divisors (1524563588).

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

981032988 is a wasteful number, since it uses less digits than its factorization.

981032988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103174 (or 103172 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 48.

The square root of 981032988 is about 31321.4461351962. The cubic root of 981032988 is about 993.6372641227.

The spelling of 981032988 in words is "nine hundred eighty-one million, thirty-two thousand, nine hundred eighty-eight".