320348432 has 20 divisors (see below), whose sum is σ = 622205340. Its totient is φ = 159779328.

The previous prime is 320348411. The next prime is 320348443. The reversal of 320348432 is 234843023.

It can be written as a sum of positive squares in 2 ways, for example, as 230553856 + 89794576 = 15184^2 + 9476^2 .

It is a junction number, because it is equal to n+sod(n) for n = 320348395 and 320348404.

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, 17933 + ... + 31020.

It is an arithmetic number, because the mean of its divisors is an integer number (31110267).

Almost surely, 2^320348432 is an apocalyptic number.

It is an amenable number.

320348432 is a deficient number, since it is larger than the sum of its proper divisors (301856908).

320348432 is a wasteful number, since it uses less digits than its factorization.

320348432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49370 (or 49364 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 320348432 is about 17898.2801408403. The cubic root of 320348432 is about 684.2385429292.

The spelling of 320348432 in words is "three hundred twenty million, three hundred forty-eight thousand, four hundred thirty-two".