127638364 has 12 divisors (see below), whose sum is σ = 255276784. Its totient is φ = 54702144.

The previous prime is 127638361. The next prime is 127638373. The reversal of 127638364 is 463836721.

127638364 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127638361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2279229 + ... + 2279284.

Almost surely, 2^127638364 is an apocalyptic number.

127638364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

127638364 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

127638364 is a wasteful number, since it uses less digits than its factorization.

127638364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4558524 (or 4558522 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 127638364 is about 11297.7149902093. The cubic root of 127638364 is about 503.4933547699.

The spelling of 127638364 in words is "one hundred twenty-seven million, six hundred thirty-eight thousand, three hundred sixty-four".