324400040 has 32 divisors (see below), whose sum is σ = 731587680. Its totient is φ = 129460032.

The previous prime is 324400031. The next prime is 324400067. The reversal of 324400040 is 40004423.

It is a junction number, because it is equal to n+sod(n) for n = 324399991 and 324400018.

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, 8567 + ... + 26873.

It is an arithmetic number, because the mean of its divisors is an integer number (22862115).

Almost surely, 2^324400040 is an apocalyptic number.

It is an amenable number.

324400040 is an abundant number, since it is smaller than the sum of its proper divisors (407187640).

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

324400040 is a wasteful number, since it uses less digits than its factorization.

324400040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18761 (or 18757 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 324400040 is about 18011.1087942969. The cubic root of 324400040 is about 687.1111030300. Note that the first 4 decimals are identical.

Adding to 324400040 its reverse (40004423), we get a palindrome (364404463).

The spelling of 324400040 in words is "three hundred twenty-four million, four hundred thousand, forty".