1373974668 has 36 divisors (see below), whose sum is σ = 3788840328. Its totient is φ = 416355840.

The previous prime is 1373974649. The next prime is 1373974691. The reversal of 1373974668 is 8664793731.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 1734421 + ... + 1735212.

Almost surely, 2^1373974668 is an apocalyptic number.

1373974668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1373974668 is an abundant number, since it is smaller than the sum of its proper divisors (2414865660).

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

1373974668 is a wasteful number, since it uses less digits than its factorization.

1373974668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469654 (or 3469649 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The square root of 1373974668 is about 37067.1642832305. The cubic root of 1373974668 is about 1111.7135743759.

The spelling of 1373974668 in words is "one billion, three hundred seventy-three million, nine hundred seventy-four thousand, six hundred sixty-eight".