1380334791 has 8 divisors (see below), whose sum is σ = 2007759744. Its totient is φ = 836566520.

The previous prime is 1380334789. The next prime is 1380334807. The reversal of 1380334791 is 1974330831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1380334791 - 2¹ = 1380334789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380334751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20914131 + ... + 20914196.

It is an arithmetic number, because the mean of its divisors is an integer number (250969968).

Almost surely, 2^1380334791 is an apocalyptic number.

1380334791 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1380334791 is a deficient number, since it is larger than the sum of its proper divisors (627424953).

1380334791 is a wasteful number, since it uses less digits than its factorization.

1380334791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41828341.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 1380334791 is about 37152.8571041313. The cubic root of 1380334791 is about 1113.4263068420.

The spelling of 1380334791 in words is "one billion, three hundred eighty million, three hundred thirty-four thousand, seven hundred ninety-one".