981313232 has 20 divisors (see below), whose sum is σ = 1937169540. Its totient is φ = 481398528.

The previous prime is 981313211. The next prime is 981313237. The reversal of 981313232 is 232313189.

It can be written as a sum of positive squares in 2 ways, for example, as 768620176 + 212693056 = 27724^2 + 14584^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981313237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577757 + ... + 579452.

It is an arithmetic number, because the mean of its divisors is an integer number (96858477).

Almost surely, 2^981313232 is an apocalyptic number.

It is an amenable number.

981313232 is a deficient number, since it is larger than the sum of its proper divisors (955856308).

981313232 is a wasteful number, since it uses less digits than its factorization.

981313232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157270 (or 1157264 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 981313232 is about 31325.9194916925. The cubic root of 981313232 is about 993.7318699697.

The spelling of 981313232 in words is "nine hundred eighty-one million, three hundred thirteen thousand, two hundred thirty-two".