324064440 has 144 divisors (see below), whose sum is σ = 1225228680. Its totient is φ = 74067840.

The previous prime is 324064439. The next prime is 324064441. The reversal of 324064440 is 44460423.

It is an interprime number because it is at equal distance from previous prime (324064439) and next prime (324064441).

It is a super-2 number, since 2×324064440² = 210035522545027200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324064441) 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 35 ways as a sum of consecutive naturals, for example, 8455 + ... + 26825.

Almost surely, 2^324064440 is an apocalyptic number.

324064440 is a gapful number since it is divisible by the number (30) 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 324064440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (612614340).

324064440 is an abundant number, since it is smaller than the sum of its proper divisors (901164240).

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

324064440 is a wasteful number, since it uses less digits than its factorization.

324064440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18402 (or 18388 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 324064440 is about 18001.7899110061. The cubic root of 324064440 is about 686.8740767023.

The spelling of 324064440 in words is "three hundred twenty-four million, sixty-four thousand, four hundred forty".