320155422 has 16 divisors (see below), whose sum is σ = 640496640. Its totient is φ = 106687512.

The previous prime is 320155411. The next prime is 320155427. The reversal of 320155422 is 224551023.

It is a junction number, because it is equal to n+sod(n) for n = 320155392 and 320155401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320155427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25923 + ... + 36225.

It is an arithmetic number, because the mean of its divisors is an integer number (40031040).

Almost surely, 2^320155422 is an apocalyptic number.

320155422 is an abundant number, since it is smaller than the sum of its proper divisors (320341218).

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

320155422 is a wasteful number, since it uses less digits than its factorization.

320155422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15487.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 320155422 is about 17892.8874696065. The cubic root of 320155422 is about 684.1010973648.

The spelling of 320155422 in words is "three hundred twenty million, one hundred fifty-five thousand, four hundred twenty-two".