1371986938 has 64 divisors (see below), whose sum is σ = 2648194560. Its totient is φ = 519247872.

The previous prime is 1371986879. The next prime is 1371986947. The reversal of 1371986938 is 8396891731.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287758 + ... + 292486.

It is an arithmetic number, because the mean of its divisors is an integer number (41378040).

Almost surely, 2^1371986938 is an apocalyptic number.

1371986938 is a deficient number, since it is larger than the sum of its proper divisors (1276207622).

1371986938 is a wasteful number, since it uses less digits than its factorization.

1371986938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4831.

The product of its digits is 1959552, while the sum is 55.

The square root of 1371986938 is about 37040.3420340579. The cubic root of 1371986938 is about 1111.1772100685.

The spelling of 1371986938 in words is "one billion, three hundred seventy-one million, nine hundred eighty-six thousand, nine hundred thirty-eight".