325716390 has 80 divisors (see below), whose sum is σ = 878953680. Its totient is φ = 86546880.

The previous prime is 325716359. The next prime is 325716407. The reversal of 325716390 is 93617523.

325716390 is a `hidden beast` number, since 3 + 257 + 16 + 390 = 666.

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 306460 + ... + 307520.

It is an arithmetic number, because the mean of its divisors is an integer number (10986921).

Almost surely, 2^325716390 is an apocalyptic number.

325716390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 325716390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (439476840).

325716390 is an abundant number, since it is smaller than the sum of its proper divisors (553237290).

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

325716390 is a wasteful number, since it uses less digits than its factorization.

325716390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459 (or 1450 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 325716390 is about 18047.6145238090. The cubic root of 325716390 is about 688.0392349064.

The spelling of 325716390 in words is "three hundred twenty-five million, seven hundred sixteen thousand, three hundred ninety".