981481596 has 12 divisors (see below), whose sum is σ = 2290123752. Its totient is φ = 327160528.

The previous prime is 981481561. The next prime is 981481601. The reversal of 981481596 is 695184189.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×981481596² = 1926612246573414432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40895055 + ... + 40895078.

It is an arithmetic number, because the mean of its divisors is an integer number (190843646).

Almost surely, 2^981481596 is an apocalyptic number.

It is an amenable number.

981481596 is an abundant number, since it is smaller than the sum of its proper divisors (1308642156).

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

981481596 is a wasteful number, since it uses less digits than its factorization.

981481596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81790140 (or 81790138 counting only the distinct ones).

The product of its digits is 622080, while the sum is 51.

The square root of 981481596 is about 31328.6066718582. The cubic root of 981481596 is about 993.7886982755.

The spelling of 981481596 in words is "nine hundred eighty-one million, four hundred eighty-one thousand, five hundred ninety-six".