127812432 has 40 divisors (see below), whose sum is σ = 360200160. Its totient is φ = 38730880.

The previous prime is 127812427. The next prime is 127812439. The reversal of 127812432 is 234218721.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 127812432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127812439) by changing a digit.

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, 120507 + ... + 121562.

It is an arithmetic number, because the mean of its divisors is an integer number (9005004).

Almost surely, 2^127812432 is an apocalyptic number.

127812432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127812432 is an abundant number, since it is smaller than the sum of its proper divisors (232387728).

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

127812432 is a wasteful number, since it uses less digits than its factorization.

127812432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242091 (or 242085 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 127812432 is about 11305.4160471873. The cubic root of 127812432 is about 503.7221320429.

The spelling of 127812432 in words is "one hundred twenty-seven million, eight hundred twelve thousand, four hundred thirty-two".