320042004 has 24 divisors (see below), whose sum is σ = 786068640. Its totient is φ = 101065824.

The previous prime is 320041993. The next prime is 320042011. The reversal of 320042004 is 400240023.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701619 + ... + 702074.

It is an arithmetic number, because the mean of its divisors is an integer number (32752860).

Almost surely, 2^320042004 is an apocalyptic number.

It is an amenable number.

320042004 is an abundant number, since it is smaller than the sum of its proper divisors (466026636).

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

320042004 is a wasteful number, since it uses less digits than its factorization.

320042004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403719 (or 1403717 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 320042004 is about 17889.7178289653. The cubic root of 320042004 is about 684.0203047904.

Adding to 320042004 its reverse (400240023), we get a palindrome (720282027).

The spelling of 320042004 in words is "three hundred twenty million, forty-two thousand, four".