323641472 has 96 divisors (see below), whose sum is σ = 818378640. Its totient is φ = 126067200.

The previous prime is 323641453. The next prime is 323641477. The reversal of 323641472 is 274146323.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (323641477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66647 + ... + 71337.

Almost surely, 2^323641472 is an apocalyptic number.

323641472 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 323641472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409189320).

323641472 is an abundant number, since it is smaller than the sum of its proper divisors (494737168).

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

323641472 is a wasteful number, since it uses less digits than its factorization.

323641472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4730 (or 4711 counting only the distinct ones).

The product of its digits is 24192, while the sum is 32.

The square root of 323641472 is about 17990.0381322553. The cubic root of 323641472 is about 686.5751112209.

Adding to 323641472 its reverse (274146323), we get a palindrome (597787795).

The spelling of 323641472 in words is "three hundred twenty-three million, six hundred forty-one thousand, four hundred seventy-two".