320401030 has 16 divisors (see below), whose sum is σ = 577144944. Its totient is φ = 128066400.

The previous prime is 320401013. The next prime is 320401033. The reversal of 320401030 is 30104023.

It is a self number, because there is not a number n which added to its sum of digits gives 320401030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320401033) 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, 3505 + ... + 25555.

It is an arithmetic number, because the mean of its divisors is an integer number (36071559).

Almost surely, 2^320401030 is an apocalyptic number.

320401030 is a deficient number, since it is larger than the sum of its proper divisors (256743914).

320401030 is a wasteful number, since it uses less digits than its factorization.

320401030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23511.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 320401030 is about 17899.7494395871. The cubic root of 320401030 is about 684.2759892488.

Adding to 320401030 its reverse (30104023), we get a palindrome (350505053).

The spelling of 320401030 in words is "three hundred twenty million, four hundred one thousand, thirty".