1376640868 has 24 divisors (see below), whose sum is σ = 2489175360. Its totient is φ = 665814240.

The previous prime is 1376640851. The next prime is 1376640883. The reversal of 1376640868 is 8680466731.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30678 + ... + 60781.

It is an arithmetic number, because the mean of its divisors is an integer number (103715640).

Almost surely, 2^1376640868 is an apocalyptic number.

It is an amenable number.

1376640868 is a deficient number, since it is larger than the sum of its proper divisors (1112534492).

1376640868 is a wasteful number, since it uses less digits than its factorization.

1376640868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91587 (or 91585 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 1376640868 is about 37103.1112981108. Note that the first 3 decimals coincide. The cubic root of 1376640868 is about 1112.4322037211.

The spelling of 1376640868 in words is "one billion, three hundred seventy-six million, six hundred forty thousand, eight hundred sixty-eight".