1368994872 has 32 divisors (see below), whose sum is σ = 3911414400. Its totient is φ = 391141344.

The previous prime is 1368994867. The next prime is 1368994903. The reversal of 1368994872 is 2784998631.

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, 4074222 + ... + 4074557.

It is an arithmetic number, because the mean of its divisors is an integer number (122231700).

Almost surely, 2^1368994872 is an apocalyptic number.

1368994872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1368994872 is an abundant number, since it is smaller than the sum of its proper divisors (2542419528).

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

1368994872 is a wasteful number, since it uses less digits than its factorization.

1368994872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8148795 (or 8148791 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 57.

The square root of 1368994872 is about 36999.9307026378. The cubic root of 1368994872 is about 1110.3688604487.

The spelling of 1368994872 in words is "one billion, three hundred sixty-eight million, nine hundred ninety-four thousand, eight hundred seventy-two".