320400010 has 32 divisors (see below), whose sum is σ = 659901312. Its totient is φ = 109719360.

The previous prime is 320400007. The next prime is 320400011. The reversal of 320400010 is 10004023.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 320400010.

It is not an unprimeable number, because it can be changed into a prime (320400011) by changing a digit.

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, 69229 + ... + 73711.

It is an arithmetic number, because the mean of its divisors is an integer number (20621916).

Almost surely, 2^320400010 is an apocalyptic number.

320400010 is an abundant number, since it is smaller than the sum of its proper divisors (339501302).

320400010 is a wasteful number, since it uses less digits than its factorization.

320400010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5518.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 320400010 is about 17899.7209475455. The cubic root of 320400010 is about 684.2752631148.

Adding to 320400010 its reverse (10004023), we get a palindrome (330404033).

The spelling of 320400010 in words is "three hundred twenty million, four hundred thousand, ten".