320793992 has 8 divisors (see below), whose sum is σ = 601488750. Its totient is φ = 160396992.

The previous prime is 320793973. The next prime is 320793997. The reversal of 320793992 is 299397023.

It can be written as a sum of positive squares in only one way, i.e., 317053636 + 3740356 = 17806^2 + 1934^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (320793997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20049617 + ... + 20049632.

Almost surely, 2^320793992 is an apocalyptic number.

It is an amenable number.

320793992 is a deficient number, since it is larger than the sum of its proper divisors (280694758).

320793992 is a wasteful number, since it uses less digits than its factorization.

320793992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40099255 (or 40099251 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 44.

The square root of 320793992 is about 17910.7228218182. The cubic root of 320793992 is about 684.5556227713. Note that the first 3 decimals are identical.

The spelling of 320793992 in words is "three hundred twenty million, seven hundred ninety-three thousand, nine hundred ninety-two".