320022432 has 36 divisors (see below), whose sum is σ = 910064610. Its totient is φ = 106674048.

The previous prime is 320022413. The next prime is 320022473. The reversal of 320022432 is 234220023.

320022432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 222487056 + 97535376 = 14916^2 + 9876^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555307 + ... + 555882.

Almost surely, 2^320022432 is an apocalyptic number.

320022432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

320022432 is an abundant number, since it is smaller than the sum of its proper divisors (590042178).

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

320022432 is a wasteful number, since it uses less digits than its factorization.

320022432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111205 (or 1111194 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 320022432 is about 17889.1708024715. The cubic root of 320022432 is about 684.0063608724.

Adding to 320022432 its reverse (234220023), we get a palindrome (554242455).

The spelling of 320022432 in words is "three hundred twenty million, twenty-two thousand, four hundred thirty-two".