325919988 has 144 divisors (see below), whose sum is σ = 924618240. Its totient is φ = 96307200.

The previous prime is 325919987. The next prime is 325919989. The reversal of 325919988 is 889919523.

It is an interprime number because it is at equal distance from previous prime (325919987) and next prime (325919989).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325919981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 777643 + ... + 778061.

It is an arithmetic number, because the mean of its divisors is an integer number (6420960).

Almost surely, 2^325919988 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 325919988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (462309120).

325919988 is an abundant number, since it is smaller than the sum of its proper divisors (598698252).

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

325919988 is a wasteful number, since it uses less digits than its factorization.

325919988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 513 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 54.

The square root of 325919988 is about 18053.2542218848. The cubic root of 325919988 is about 688.1825643375.

The spelling of 325919988 in words is "three hundred twenty-five million, nine hundred nineteen thousand, nine hundred eighty-eight".