324155140 has 24 divisors (see below), whose sum is σ = 681535512. Its totient is φ = 129507840.

The previous prime is 324155087. The next prime is 324155147. The reversal of 324155140 is 41551423.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 45131524 + 279023616 = 6718^2 + 16704^2 .

It is not an unprimeable number, because it can be changed into a prime (324155147) 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, 8422 + ... + 26818.

It is an arithmetic number, because the mean of its divisors is an integer number (28397313).

Almost surely, 2^324155140 is an apocalyptic number.

It is an amenable number.

324155140 is an abundant number, since it is smaller than the sum of its proper divisors (357380372).

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

324155140 is a wasteful number, since it uses less digits than its factorization.

324155140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19287 (or 19285 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 324155140 is about 18004.3089286982. The cubic root of 324155140 is about 686.9381520937.

The spelling of 324155140 in words is "three hundred twenty-four million, one hundred fifty-five thousand, one hundred forty".