981308232 has 24 divisors (see below), whose sum is σ = 2657709990. Its totient is φ = 327102720.

The previous prime is 981308231. The next prime is 981308239. The reversal of 981308232 is 232803189.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 914820516 + 66487716 = 30246^2 + 8154^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (981308231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6814569 + ... + 6814712.

Almost surely, 2^981308232 is an apocalyptic number.

It is an amenable number.

981308232 is an abundant number, since it is smaller than the sum of its proper divisors (1676401758).

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

981308232 is a wasteful number, since it uses less digits than its factorization.

981308232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13629293 (or 13629286 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 981308232 is about 31325.8396854737. The cubic root of 981308232 is about 993.7301822083.

The spelling of 981308232 in words is "nine hundred eighty-one million, three hundred eight thousand, two hundred thirty-two".