1380800791 has 16 divisors (see below), whose sum is σ = 1491867648. Its totient is φ = 1274248800.

The previous prime is 1380800783. The next prime is 1380800797. The reversal of 1380800791 is 1970080831.

It is not a de Polignac number, because 1380800791 - 2³ = 1380800783 is a prime.

It is a super-2 number, since 2×1380800791² = 3813221648852451362, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1380800791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380800797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244621 + ... + 250201.

It is an arithmetic number, because the mean of its divisors is an integer number (93241728).

Almost surely, 2^1380800791 is an apocalyptic number.

1380800791 is a deficient number, since it is larger than the sum of its proper divisors (111066857).

1380800791 is a wasteful number, since it uses less digits than its factorization.

1380800791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5982.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 1380800791 is about 37159.1279633955. The cubic root of 1380800791 is about 1113.5515900425.

The spelling of 1380800791 in words is "one billion, three hundred eighty million, eight hundred thousand, seven hundred ninety-one".