325915920 has 480 divisors, whose sum is σ = 1306166400. Its totient is φ = 74511360.

The previous prime is 325915879. The next prime is 325915979. The reversal of 325915920 is 29519523.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7579419 + ... + 7579461.

It is an arithmetic number, because the mean of its divisors is an integer number (2721180).

Almost surely, 2^325915920 is an apocalyptic number.

325915920 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 325915920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653083200).

325915920 is an abundant number, since it is smaller than the sum of its proper divisors (980250480).

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

325915920 is a wasteful number, since it uses less digits than its factorization.

325915920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 325915920 is about 18053.1415548652. The cubic root of 325915920 is about 688.1797011212.

The spelling of 325915920 in words is "three hundred twenty-five million, nine hundred fifteen thousand, nine hundred twenty".