320032672 has 24 divisors (see below), whose sum is σ = 657459936. Its totient is φ = 153058752.

The previous prime is 320032663. The next prime is 320032681. The reversal of 320032672 is 276230023.

It is an interprime number because it is at equal distance from previous prime (320032663) and next prime (320032681).

It is a super-2 number, since 2×320032672² = 204841822294919168, which contains 22 as substring.

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, 216678 + ... + 218149.

It is an arithmetic number, because the mean of its divisors is an integer number (27394164).

Almost surely, 2^320032672 is an apocalyptic number.

320032672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

320032672 is an abundant number, since it is smaller than the sum of its proper divisors (337427264).

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

320032672 is a wasteful number, since it uses less digits than its factorization.

320032672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434860 (or 434852 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 320032672 is about 17889.4570068518. The cubic root of 320032672 is about 684.0136563510.

Adding to 320032672 its reverse (276230023), we get a palindrome (596262695).

The spelling of 320032672 in words is "three hundred twenty million, thirty-two thousand, six hundred seventy-two".