320102432 has 48 divisors (see below), whose sum is σ = 681327360. Its totient is φ = 147163392.

The previous prime is 320102417. The next prime is 320102459. The reversal of 320102432 is 234201023.

It is a self number, because there is not a number n which added to its sum of digits gives 320102432.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116369 + ... + 119087.

It is an arithmetic number, because the mean of its divisors is an integer number (14194320).

Almost surely, 2^320102432 is an apocalyptic number.

320102432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320102432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340663680).

320102432 is an abundant number, since it is smaller than the sum of its proper divisors (361224928).

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

320102432 is a wasteful number, since it uses less digits than its factorization.

320102432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3025 (or 3017 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 320102432 is about 17891.4066523569. The cubic root of 320102432 is about 684.0633526583.

Adding to 320102432 its reverse (234201023), we get a palindrome (554303455).

The spelling of 320102432 in words is "three hundred twenty million, one hundred two thousand, four hundred thirty-two".