320432472 has 48 divisors (see below), whose sum is σ = 875969640. Its totient is φ = 105810048.

The previous prime is 320432467. The next prime is 320432477. The reversal of 320432472 is 274234023.

It is an interprime number because it is at equal distance from previous prime (320432467) and next prime (320432477).

It is a super-2 number, since 2×320432472² = 205353938224061568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320432477) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 13093 + ... + 28500.

Almost surely, 2^320432472 is an apocalyptic number.

It is an amenable number.

320432472 is an abundant number, since it is smaller than the sum of its proper divisors (555537168).

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

320432472 is a wasteful number, since it uses less digits than its factorization.

320432472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41712 (or 41705 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 320432472 is about 17900.6276984915. The cubic root of 320432472 is about 684.2983719296.

Adding to 320432472 its reverse (274234023), we get a palindrome (594666495).

The spelling of 320432472 in words is "three hundred twenty million, four hundred thirty-two thousand, four hundred seventy-two".