320250042 has 48 divisors (see below), whose sum is σ = 803063040. Its totient is φ = 90338976.

The previous prime is 320250041. The next prime is 320250071. The reversal of 320250042 is 240052023.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 320249997 and 320250024.

It is not an unprimeable number, because it can be changed into a prime (320250041) 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 23 ways as a sum of consecutive naturals, for example, 6133 + ... + 26040.

It is an arithmetic number, because the mean of its divisors is an integer number (16730480).

Almost surely, 2^320250042 is an apocalyptic number.

320250042 is an abundant number, since it is smaller than the sum of its proper divisors (482812998).

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

320250042 is a wasteful number, since it uses less digits than its factorization.

320250042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32267 (or 32264 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 320250042 is about 17895.5313416506. The cubic root of 320250042 is about 684.1684847082.

The spelling of 320250042 in words is "three hundred twenty million, two hundred fifty thousand, forty-two".