1320440230 has 16 divisors (see below), whose sum is σ = 2393894160. Its totient is φ = 524375712.

The previous prime is 1320440203. The next prime is 1320440239. The reversal of 1320440230 is 320440231.

It is a junction number, because it is equal to n+sod(n) for n = 1320440198 and 1320440207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320440239) 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, 473589 + ... + 476368.

It is an arithmetic number, because the mean of its divisors is an integer number (149618385).

Almost surely, 2^1320440230 is an apocalyptic number.

1320440230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320440230 is a deficient number, since it is larger than the sum of its proper divisors (1073453930).

1320440230 is a wasteful number, since it uses less digits than its factorization.

1320440230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950103.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1320440230 is about 36337.8622100971. The cubic root of 1320440230 is about 1097.0832452346.

Adding to 1320440230 its reverse (320440231), we get a palindrome (1640880461).

Subtracting from 1320440230 its reverse (320440231), we obtain a palindrome (999999999).

The spelling of 1320440230 in words is "one billion, three hundred twenty million, four hundred forty thousand, two hundred thirty".