324430440 has 32 divisors (see below), whose sum is σ = 973291680. Its totient is φ = 86514752.

The previous prime is 324430429. The next prime is 324430441. The reversal of 324430440 is 44034423.

It is a happy number.

It is a super-2 number, since 2×324430440² = 210510220797187200, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 324430440.

It is not an unprimeable number, because it can be changed into a prime (324430441) 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, 1351674 + ... + 1351913.

It is an arithmetic number, because the mean of its divisors is an integer number (30415365).

Almost surely, 2^324430440 is an apocalyptic number.

324430440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

324430440 is an abundant number, since it is smaller than the sum of its proper divisors (648861240).

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

324430440 is a wasteful number, since it uses less digits than its factorization.

324430440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703601 (or 2703597 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 324430440 is about 18011.9526981391. The cubic root of 324430440 is about 687.1325657535.

Adding to 324430440 its reverse (44034423), we get a palindrome (368464863).

The spelling of 324430440 in words is "three hundred twenty-four million, four hundred thirty thousand, four hundred forty".