325990440 has 64 divisors (see below), whose sum is σ = 1086638400. Its totient is φ = 86930496.

The previous prime is 325990433. The next prime is 325990447. The reversal of 325990440 is 44099523.

It is an interprime number because it is at equal distance from previous prime (325990433) and next prime (325990447).

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

It is a junction number, because it is equal to n+sod(n) for n = 325990395 and 325990404.

It is not an unprimeable number, because it can be changed into a prime (325990447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149842 + ... + 152001.

It is an arithmetic number, because the mean of its divisors is an integer number (16978725).

Almost surely, 2^325990440 is an apocalyptic number.

325990440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

325990440 is an abundant number, since it is smaller than the sum of its proper divisors (760647960).

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

325990440 is a wasteful number, since it uses less digits than its factorization.

325990440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301863 (or 301853 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 325990440 is about 18055.2053436121. The cubic root of 325990440 is about 688.2321474118.

The spelling of 325990440 in words is "three hundred twenty-five million, nine hundred ninety thousand, four hundred forty".