324489640 has 32 divisors (see below), whose sum is σ = 730620000. Its totient is φ = 129703744.

The previous prime is 324489637. The next prime is 324489661. The reversal of 324489640 is 46984423.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 324489593 and 324489602.

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, 96711 + ... + 100009.

It is an arithmetic number, because the mean of its divisors is an integer number (22831875).

Almost surely, 2^324489640 is an apocalyptic number.

It is an amenable number.

324489640 is an abundant number, since it is smaller than the sum of its proper divisors (406130360).

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

324489640 is a wasteful number, since it uses less digits than its factorization.

324489640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5769 (or 5765 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 324489640 is about 18013.5959763730. The cubic root of 324489640 is about 687.1743577361.

The spelling of 324489640 in words is "three hundred twenty-four million, four hundred eighty-nine thousand, six hundred forty".