1376800389 has 16 divisors (see below), whose sum is σ = 2050391040. Its totient is φ = 913057920.

The previous prime is 1376800343. The next prime is 1376800391. The reversal of 1376800389 is 9830086731.

It is a happy number.

It is not a de Polignac number, because 1376800389 - 2⁹ = 1376799877 is a prime.

It is a super-2 number, since 2×1376800389² = 3791158622301102642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1376800319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128332 + ... + 138645.

It is an arithmetic number, because the mean of its divisors is an integer number (128149440).

Almost surely, 2^1376800389 is an apocalyptic number.

It is an amenable number.

1376800389 is a deficient number, since it is larger than the sum of its proper divisors (673590651).

1376800389 is a wasteful number, since it uses less digits than its factorization.

1376800389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267177 (or 267171 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1376800389 is about 37105.2609342665. The cubic root of 1376800389 is about 1112.4751704933.

The spelling of 1376800389 in words is "one billion, three hundred seventy-six million, eight hundred thousand, three hundred eighty-nine".