1380479303844 has 81 divisors (see below), whose sum is σ = 3707208638497. Its totient is φ = 433053948288.

The previous prime is 1380479303813. The next prime is 1380479303849. The reversal of 1380479303844 is 4483039740831.

The square root of 1380479303844 is 1174938.

It is a perfect power (a square), and thus also a powerful number.

1380479303844 is a `hidden beast` number, since 13 + 80 + 479 + 3 + 0 + 3 + 84 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1074767624100 + 305711679744 = 1036710^2 + 552912^2 .

It is a super-2 number, since 2×1380479303844² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1380479303849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 119837917 + ... + 119849435.

Almost surely, 2^{1380479303844} is an apocalyptic number.

1380479303844 is the 1174938-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1380479303844

1380479303844 is an abundant number, since it is smaller than the sum of its proper divisors (2326729334653).

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

1380479303844 is an equidigital number, since it uses as much as digits as its factorization.

1380479303844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23082 (or 11541 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 1380479303844 in words is "one trillion, three hundred eighty billion, four hundred seventy-nine million, three hundred three thousand, eight hundred forty-four".