1380120722 has 18 divisors (see below), whose sum is σ = 2098053279. Its totient is φ = 680892480.

The previous prime is 1380120667. The next prime is 1380120751. The reversal of 1380120722 is 2270210831.

It can be written as a sum of positive squares in 5 ways, for example, as 1244607841 + 135512881 = 35279^2 + 11641^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=26269.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1380120691 and 1380120700.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 5726522 + ... + 5726762.

Almost surely, 2^1380120722 is an apocalyptic number.

1380120722 is a deficient number, since it is larger than the sum of its proper divisors (717932557).

1380120722 is an frugal number, since it uses more digits than its factorization.

1380120722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1380120722 is about 37149.9760699788. The cubic root of 1380120722 is about 1113.3687453527.

The spelling of 1380120722 in words is "one billion, three hundred eighty million, one hundred twenty thousand, seven hundred twenty-two".