325891020 has 192 divisors, whose sum is σ = 1189472256. Its totient is φ = 64696320.

The previous prime is 325891019. The next prime is 325891031. The reversal of 325891020 is 20198523.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 91065 + ... + 94575.

It is an arithmetic number, because the mean of its divisors is an integer number (6195168).

Almost surely, 2^325891020 is an apocalyptic number.

325891020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 325891020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (594736128).

325891020 is an abundant number, since it is smaller than the sum of its proper divisors (863581236).

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

325891020 is a wasteful number, since it uses less digits than its factorization.

325891020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3560 (or 3558 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 325891020 is about 18052.4519110286. The cubic root of 325891020 is about 688.1621750151.

The spelling of 325891020 in words is "three hundred twenty-five million, eight hundred ninety-one thousand, twenty".