1320244440004 has 12 divisors (see below), whose sum is σ = 2640488880064. Its totient is φ = 565819045704.

The previous prime is 1320244439989. The next prime is 1320244440017. The reversal of 1320244440004 is 4000444420231.

1320244440004 is an admirable number.

It is a super-2 number, since 2×1320244440004² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 47151587143 = 1320244440004 / (1 + 3 + 2 + 0 + 2 + 4 + 4 + 4 + 4 + 0 + 0 + 0 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23575793544 + ... + 23575793599.

Almost surely, 2^{1320244440004} is an apocalyptic number.

1320244440004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1320244440004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1320244440004 is a wasteful number, since it uses less digits than its factorization.

1320244440004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47151587154 (or 47151587152 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 1320244440004 its reverse (4000444420231), we get a palindrome (5320688860235).

The spelling of 1320244440004 in words is "one trillion, three hundred twenty billion, two hundred forty-four million, four hundred forty thousand, four".