1323402432 has 56 divisors (see below), whose sum is σ = 3819826752. Its totient is φ = 401030400.

The previous prime is 1323402427. The next prime is 1323402439. The reversal of 1323402432 is 2342043231.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1323402439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311194 + ... + 315417.

It is an arithmetic number, because the mean of its divisors is an integer number (68211192).

Almost surely, 2^1323402432 is an apocalyptic number.

1323402432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1323402432 is an abundant number, since it is smaller than the sum of its proper divisors (2496424320).

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

1323402432 is a wasteful number, since it uses less digits than its factorization.

1323402432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626637 (or 626627 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 1323402432 is about 36378.5985436493. The cubic root of 1323402432 is about 1097.9030109983.

Adding to 1323402432 its reverse (2342043231), we get a palindrome (3665445663).

The spelling of 1323402432 in words is "one billion, three hundred twenty-three million, four hundred two thousand, four hundred thirty-two".