320748832 has 24 divisors (see below), whose sum is σ = 640903536. Its totient is φ = 157979712.

The previous prime is 320748817. The next prime is 320748851. The reversal of 320748832 is 238847023.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 320748791 and 320748800.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72658 + ... + 76945.

It is an arithmetic number, because the mean of its divisors is an integer number (26704314).

Almost surely, 2^320748832 is an apocalyptic number.

320748832 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

320748832 is a deficient number, since it is larger than the sum of its proper divisors (320154704).

320748832 is a wasteful number, since it uses less digits than its factorization.

320748832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149680 (or 149672 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 320748832 is about 17909.4620801408. The cubic root of 320748832 is about 684.5234983306.

The spelling of 320748832 in words is "three hundred twenty million, seven hundred forty-eight thousand, eight hundred thirty-two".