324400140 has 72 divisors (see below), whose sum is σ = 1020474000. Its totient is φ = 86505408.

The previous prime is 324400117. The next prime is 324400199. The reversal of 324400140 is 41004423.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28515 + ... + 38234.

It is an arithmetic number, because the mean of its divisors is an integer number (14173250).

Almost surely, 2^324400140 is an apocalyptic number.

324400140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

324400140 is an abundant number, since it is smaller than the sum of its proper divisors (696073860).

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

324400140 is a wasteful number, since it uses less digits than its factorization.

324400140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66773 (or 66759 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 324400140 is about 18011.1115703612. Note that the first 3 decimals coincide. The cubic root of 324400140 is about 687.1111736333. Note that the first 4 decimals are identical.

Adding to 324400140 its reverse (41004423), we get a palindrome (365404563).

The spelling of 324400140 in words is "three hundred twenty-four million, four hundred thousand, one hundred forty".