1380308739 has 8 divisors (see below), whose sum is σ = 1859385360. Its totient is φ = 910718976.

The previous prime is 1380308687. The next prime is 1380308753. The reversal of 1380308739 is 9378030831.

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

It is not a de Polignac number, because 1380308739 - 2⁹ = 1380308227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1380308739.

It is not an unprimeable number, because it can be changed into a prime (1380308639) 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, 2371374 + ... + 2371955.

It is an arithmetic number, because the mean of its divisors is an integer number (232423170).

Almost surely, 2^1380308739 is an apocalyptic number.

1380308739 is a deficient number, since it is larger than the sum of its proper divisors (479076621).

1380308739 is an equidigital number, since it uses as much as digits as its factorization.

1380308739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4743429.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 1380308739 is about 37152.5064968704. The cubic root of 1380308739 is about 1113.4193019799.

The spelling of 1380308739 in words is "one billion, three hundred eighty million, three hundred eight thousand, seven hundred thirty-nine".