320401042 has 16 divisors (see below), whose sum is σ = 517870080. Its totient is φ = 147791952.

The previous prime is 320401033. The next prime is 320401043. The reversal of 320401042 is 240104023.

It is not an unprimeable number, because it can be changed into a prime (320401043) 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, 74959 + ... + 79117.

It is an arithmetic number, because the mean of its divisors is an integer number (32366880).

Almost surely, 2^320401042 is an apocalyptic number.

320401042 is a deficient number, since it is larger than the sum of its proper divisors (197469038).

320401042 is a wasteful number, since it uses less digits than its factorization.

320401042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7137.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 320401042 is about 17899.7497747874. The cubic root of 320401042 is about 684.2759977916.

Adding to 320401042 its reverse (240104023), we get a palindrome (560505065).

The spelling of 320401042 in words is "three hundred twenty million, four hundred one thousand, forty-two".