320003432 has 16 divisors (see below), whose sum is σ = 685721760. Its totient is φ = 137144304.

The previous prime is 320003407. The next prime is 320003441. The reversal of 320003432 is 234300023.

320003432 is a modest number, since divided by 3432 gives 320 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 320003432.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2857118 + ... + 2857229.

It is an arithmetic number, because the mean of its divisors is an integer number (42857610).

Almost surely, 2^320003432 is an apocalyptic number.

It is an amenable number.

320003432 is an abundant number, since it is smaller than the sum of its proper divisors (365718328).

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

320003432 is a wasteful number, since it uses less digits than its factorization.

320003432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5714360 (or 5714356 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 320003432 is about 17888.6397470573. The cubic root of 320003432 is about 683.9928239275.

Adding to 320003432 its reverse (234300023), we get a palindrome (554303455).

The spelling of 320003432 in words is "three hundred twenty million, three thousand, four hundred thirty-two".