320250540 has 96 divisors (see below), whose sum is σ = 927186624. Its totient is φ = 82529280.

The previous prime is 320250521. The next prime is 320250563. The reversal of 320250540 is 45052023.

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 31 ways as a sum of consecutive naturals, for example, 401422 + ... + 402218.

It is an arithmetic number, because the mean of its divisors is an integer number (9658194).

Almost surely, 2^320250540 is an apocalyptic number.

320250540 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 320250540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (463593312).

320250540 is an abundant number, since it is smaller than the sum of its proper divisors (606936084).

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

320250540 is a wasteful number, since it uses less digits than its factorization.

320250540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027 (or 1025 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 320250540 is about 17895.5452557333. The cubic root of 320250540 is about 684.1688393433.

The spelling of 320250540 in words is "three hundred twenty million, two hundred fifty thousand, five hundred forty".