320044992 has 112 divisors (see below), whose sum is σ = 925811712. Its totient is φ = 97136640.

The previous prime is 320044973. The next prime is 320044993. The reversal of 320044992 is 299440023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320044993) 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, 99603 + ... + 102765.

It is an arithmetic number, because the mean of its divisors is an integer number (8266176).

Almost surely, 2^320044992 is an apocalyptic number.

320044992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320044992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (462905856).

320044992 is an abundant number, since it is smaller than the sum of its proper divisors (605766720).

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

320044992 is a wasteful number, since it uses less digits than its factorization.

320044992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226 (or 3216 counting only the distinct ones).

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

The square root of 320044992 is about 17889.8013404286. The cubic root of 320044992 is about 684.0224335175.

The spelling of 320044992 in words is "three hundred twenty million, forty-four thousand, nine hundred ninety-two".