325305540 has 144 divisors (see below), whose sum is σ = 1194141312. Its totient is φ = 69977088.

The previous prime is 325305511. The next prime is 325305559. The reversal of 325305540 is 45503523.

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 47 ways as a sum of consecutive naturals, for example, 13827 + ... + 29013.

It is an arithmetic number, because the mean of its divisors is an integer number (8292648).

Almost surely, 2^325305540 is an apocalyptic number.

325305540 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 325305540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597070656).

325305540 is an abundant number, since it is smaller than the sum of its proper divisors (868835772).

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

325305540 is a wasteful number, since it uses less digits than its factorization.

325305540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15226 (or 15221 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 325305540 is about 18036.2285414662. The cubic root of 325305540 is about 687.7498217164.

The spelling of 325305540 in words is "three hundred twenty-five million, three hundred five thousand, five hundred forty".