324992745 has 72 divisors (see below), whose sum is σ = 714916800. Its totient is φ = 135051840.

The previous prime is 324992711. The next prime is 324992749. The reversal of 324992745 is 547299423.

It is not a de Polignac number, because 324992745 - 2¹¹ = 324990697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 324992745.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324992749) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 17556 + ... + 30954.

It is an arithmetic number, because the mean of its divisors is an integer number (9929400).

Almost surely, 2^324992745 is an apocalyptic number.

324992745 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

324992745 is an abundant number, since it is smaller than the sum of its proper divisors (389924055).

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

324992745 is a wasteful number, since it uses less digits than its factorization.

324992745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13435 (or 13425 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 324992745 is about 18027.5551587008. Note that the first 3 decimals coincide. The cubic root of 324992745 is about 687.5293175377.

The spelling of 324992745 in words is "three hundred twenty-four million, nine hundred ninety-two thousand, seven hundred forty-five".