324200645 has 4 divisors (see below), whose sum is σ = 389040780. Its totient is φ = 259360512.

The previous prime is 324200641. The next prime is 324200677. The reversal of 324200645 is 546002423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 546002423 = 14197 ⋅38459.

It can be written as a sum of positive squares in 2 ways, for example, as 193738561 + 130462084 = 13919^2 + 11422^2 .

It is a cyclic number.

It is not a de Polignac number, because 324200645 - 2² = 324200641 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324200641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32420060 + ... + 32420069.

It is an arithmetic number, because the mean of its divisors is an integer number (97260195).

Almost surely, 2^324200645 is an apocalyptic number.

It is an amenable number.

324200645 is a deficient number, since it is larger than the sum of its proper divisors (64840135).

324200645 is an equidigital number, since it uses as much as digits as its factorization.

324200645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64840134.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 324200645 is about 18005.5726096117. The cubic root of 324200645 is about 686.9702947873.

The spelling of 324200645 in words is "three hundred twenty-four million, two hundred thousand, six hundred forty-five".