320401430 has 32 divisors (see below), whose sum is σ = 606590208. Its totient is φ = 121680000.

The previous prime is 320401387. The next prime is 320401441. The reversal of 320401430 is 34104023.

It is a junction number, because it is equal to n+sod(n) for n = 320401399 and 320401408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6680 + ... + 26180.

It is an arithmetic number, because the mean of its divisors is an integer number (18955944).

Almost surely, 2^320401430 is an apocalyptic number.

320401430 is a deficient number, since it is larger than the sum of its proper divisors (286188778).

320401430 is a wasteful number, since it uses less digits than its factorization.

320401430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19592.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 320401430 is about 17899.7606129244. The cubic root of 320401430 is about 684.2762740068.

Adding to 320401430 its reverse (34104023), we get a palindrome (354505453).

The spelling of 320401430 in words is "three hundred twenty million, four hundred one thousand, four hundred thirty".