325981900 has 36 divisors (see below), whose sum is σ = 710978800. Its totient is φ = 129729600.

The previous prime is 325981897. The next prime is 325981913. The reversal of 325981900 is 9189523.

It is a super-2 number, since 2×325981900² = 212528398255220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 325981900.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11710 + ... + 28090.

Almost surely, 2^325981900 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 325981900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355489400).

325981900 is an abundant number, since it is smaller than the sum of its proper divisors (384996900).

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

325981900 is a wasteful number, since it uses less digits than its factorization.

325981900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16594 (or 16587 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 325981900 is about 18054.9688451684. The cubic root of 325981900 is about 688.2261374668.

The spelling of 325981900 in words is "three hundred twenty-five million, nine hundred eighty-one thousand, nine hundred".