320670042 has 32 divisors (see below), whose sum is σ = 799593984. Its totient is φ = 83290800.

The previous prime is 320670037. The next prime is 320670067. The reversal of 320670042 is 240076023.

It is a junction number, because it is equal to n+sod(n) for n = 320669994 and 320670021.

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 15 ways as a sum of consecutive naturals, for example, 346584 + ... + 347507.

It is an arithmetic number, because the mean of its divisors is an integer number (24987312).

Almost surely, 2^320670042 is an apocalyptic number.

320670042 is an abundant number, since it is smaller than the sum of its proper divisors (478923942).

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

320670042 is a wasteful number, since it uses less digits than its factorization.

320670042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694114.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 320670042 is about 17907.2622698167. The cubic root of 320670042 is about 684.4674440624.

The spelling of 320670042 in words is "three hundred twenty million, six hundred seventy thousand, forty-two".