1376861340 has 24 divisors (see below), whose sum is σ = 3855211920. Its totient is φ = 367163008.

The previous prime is 1376861327. The next prime is 1376861357. The reversal of 1376861340 is 431686731.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11473785 + ... + 11473904.

It is an arithmetic number, because the mean of its divisors is an integer number (160633830).

Almost surely, 2^1376861340 is an apocalyptic number.

1376861340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1376861340 is an abundant number, since it is smaller than the sum of its proper divisors (2478350580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1376861340 is a wasteful number, since it uses less digits than its factorization.

1376861340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22947701 (or 22947699 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 1376861340 is about 37106.0822507578. The cubic root of 1376861340 is about 1112.4915866889.

The spelling of 1376861340 in words is "one billion, three hundred seventy-six million, eight hundred sixty-one thousand, three hundred forty".