324972730 has 32 divisors (see below), whose sum is σ = 591267600. Its totient is φ = 128593920.

The previous prime is 324972719. The next prime is 324972737. The reversal of 324972730 is 37279423.

It is a Cunningham number, because it is equal to 18027²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 95238081 + 229734649 = 9759^2 + 15157^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 324972730.

It is not an unprimeable number, because it can be changed into a prime (324972737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 704700 + ... + 705160.

Almost surely, 2^324972730 is an apocalyptic number.

324972730 is a deficient number, since it is larger than the sum of its proper divisors (266294870).

324972730 is a wasteful number, since it uses less digits than its factorization.

324972730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 324972730 is about 18027.0000277362. Note that the first 4 decimals coincide. The cubic root of 324972730 is about 687.5152031900.

The spelling of 324972730 in words is "three hundred twenty-four million, nine hundred seventy-two thousand, seven hundred thirty".