325437840 has 240 divisors, whose sum is σ = 1345413888. Its totient is φ = 68649984.

The previous prime is 325437839. The next prime is 325437841. The reversal of 325437840 is 48734523.

It is a happy number.

325437840 is a `hidden beast` number, since 3 + 2 + 543 + 78 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (325437839) and next prime (325437841).

It is a tau number, because it is divible by the number of its divisors (240).

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 = 325437795 and 325437804.

It is not an unprimeable number, because it can be changed into a prime (325437841) 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 47 ways as a sum of consecutive naturals, for example, 63037 + ... + 68003.

Almost surely, 2^325437840 is an apocalyptic number.

325437840 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 325437840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672706944).

325437840 is an abundant number, since it is smaller than the sum of its proper divisors (1019976048).

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

325437840 is a wasteful number, since it uses less digits than its factorization.

325437840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5006 (or 4997 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 325437840 is about 18039.8957868387. The cubic root of 325437840 is about 687.8430437882.

The spelling of 325437840 in words is "three hundred twenty-five million, four hundred thirty-seven thousand, eight hundred forty".