645000324 has 24 divisors (see below), whose sum is σ = 1508156160. Its totient is φ = 214549344.

The previous prime is 645000287. The next prime is 645000337. The reversal of 645000324 is 423000546.

It is a junction number, because it is equal to n+sod(n) for n = 645000294 and 645000303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50359 + ... + 61854.

It is an arithmetic number, because the mean of its divisors is an integer number (62839840).

Almost surely, 2^645000324 is an apocalyptic number.

It is an amenable number.

645000324 is an abundant number, since it is smaller than the sum of its proper divisors (863155836).

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

645000324 is a wasteful number, since it uses less digits than its factorization.

645000324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112699 (or 112697 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 645000324 is about 25396.8565771436. The cubic root of 645000324 is about 864.0124044430.

The spelling of 645000324 in words is "six hundred forty-five million, three hundred twenty-four", and thus it is an aban number.