981481732 has 48 divisors (see below), whose sum is σ = 2155160448. Its totient is φ = 379941120.

The previous prime is 981481717. The next prime is 981481733. The reversal of 981481732 is 237184189.

It is not an unprimeable number, because it can be changed into a prime (981481733) 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, 38208 + ... + 58504.

It is an arithmetic number, because the mean of its divisors is an integer number (44899176).

Almost surely, 2^981481732 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 981481732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1077580224).

981481732 is an abundant number, since it is smaller than the sum of its proper divisors (1173678716).

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

981481732 is a wasteful number, since it uses less digits than its factorization.

981481732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20476 (or 20474 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 981481732 is about 31328.6088423983. The cubic root of 981481732 is about 993.7887441772.

The spelling of 981481732 in words is "nine hundred eighty-one million, four hundred eighty-one thousand, seven hundred thirty-two".