1380270639 has 16 divisors (see below), whose sum is σ = 2019279744. Its totient is φ = 831688800.

The previous prime is 1380270623. The next prime is 1380270643. The reversal of 1380270639 is 9360720831.

It is not a de Polignac number, because 1380270639 - 2⁴ = 1380270623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1380270597 and 1380270606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380270659) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 115177 + ... + 126594.

It is an arithmetic number, because the mean of its divisors is an integer number (126204984).

Almost surely, 2^1380270639 is an apocalyptic number.

1380270639 is a deficient number, since it is larger than the sum of its proper divisors (639009105).

1380270639 is a wasteful number, since it uses less digits than its factorization.

1380270639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241958.

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

The square root of 1380270639 is about 37151.9937419245. The cubic root of 1380270639 is about 1113.4090574926.

The spelling of 1380270639 in words is "one billion, three hundred eighty million, two hundred seventy thousand, six hundred thirty-nine".