325870840 has 64 divisors (see below), whose sum is σ = 756257760. Its totient is φ = 126282240.

The previous prime is 325870837. The next prime is 325870847. The reversal of 325870840 is 48078523.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 325870840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325870847) 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, 622819 + ... + 623341.

Almost surely, 2^325870840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 325870840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378128880).

325870840 is an abundant number, since it is smaller than the sum of its proper divisors (430386920).

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

325870840 is a wasteful number, since it uses less digits than its factorization.

325870840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 325870840 is about 18051.8929755303. The cubic root of 325870840 is about 688.1479704718.

The spelling of 325870840 in words is "three hundred twenty-five million, eight hundred seventy thousand, eight hundred forty".