127680736 has 24 divisors (see below), whose sum is σ = 260041320. Its totient is φ = 61638528.

The previous prime is 127680719. The next prime is 127680737. The reversal of 127680736 is 637086721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127680737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67866 + ... + 69721.

It is an arithmetic number, because the mean of its divisors is an integer number (10835055).

Almost surely, 2^127680736 is an apocalyptic number.

127680736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

127680736 is an abundant number, since it is smaller than the sum of its proper divisors (132360584).

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

127680736 is a wasteful number, since it uses less digits than its factorization.

127680736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137626 (or 137618 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 127680736 is about 11299.5900810605. The cubic root of 127680736 is about 503.5490633606.

The spelling of 127680736 in words is "one hundred twenty-seven million, six hundred eighty thousand, seven hundred thirty-six".