320980632 has 64 divisors (see below), whose sum is σ = 921792000. Its totient is φ = 91238400.

The previous prime is 320980609. The next prime is 320980637. The reversal of 320980632 is 236089023.

It is a super-2 number, since 2×320980632² = 206057132238238848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320980593 and 320980602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320980637) 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, 28632 + ... + 38232.

It is an arithmetic number, because the mean of its divisors is an integer number (14403000).

Almost surely, 2^320980632 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 320980632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460896000).

320980632 is an abundant number, since it is smaller than the sum of its proper divisors (600811368).

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

320980632 is a wasteful number, since it uses less digits than its factorization.

320980632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9816 (or 9812 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 320980632 is about 17915.9323508435. The cubic root of 320980632 is about 684.6883566487.

The spelling of 320980632 in words is "three hundred twenty million, nine hundred eighty thousand, six hundred thirty-two".