1320223344 has 80 divisors (see below), whose sum is σ = 3821243520. Its totient is φ = 389249280.

The previous prime is 1320223321. The next prime is 1320223393. The reversal of 1320223344 is 4433220231.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 14254 + ... + 53325.

It is an arithmetic number, because the mean of its divisors is an integer number (47765544).

Almost surely, 2^1320223344 is an apocalyptic number.

It is an amenable number.

1320223344 is an abundant number, since it is smaller than the sum of its proper divisors (2501020176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1320223344 is a wasteful number, since it uses less digits than its factorization.

1320223344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67638 (or 67632 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 1320223344 is about 36334.8777898041. The cubic root of 1320223344 is about 1097.0231756154.

Adding to 1320223344 its reverse (4433220231), we get a palindrome (5753443575).

The spelling of 1320223344 in words is "one billion, three hundred twenty million, two hundred twenty-three thousand, three hundred forty-four".