325044840 has 64 divisors (see below), whose sum is σ = 976973760. Its totient is φ = 86515200.

The previous prime is 325044829. The next prime is 325044851. The reversal of 325044840 is 48440523.

It is a Cunningham number, because it is equal to 18029²-1.

It is an interprime number because it is at equal distance from previous prime (325044829) and next prime (325044851).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 325044798 and 325044807.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69867 + ... + 74373.

It is an arithmetic number, because the mean of its divisors is an integer number (15265215).

Almost surely, 2^325044840 is an apocalyptic number.

325044840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

325044840 is an abundant number, since it is smaller than the sum of its proper divisors (651928920).

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

325044840 is a wasteful number, since it uses less digits than its factorization.

325044840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5122 (or 5118 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 325044840 is about 18028.9999722669. Note that the first 4 decimals coincide. The cubic root of 325044840 is about 687.5660516153.

The spelling of 325044840 in words is "three hundred twenty-five million, forty-four thousand, eight hundred forty".