127884642 has 32 divisors (see below), whose sum is σ = 274871232. Its totient is φ = 39519744.

The previous prime is 127884619. The next prime is 127884661. The reversal of 127884642 is 246488721.

It is a junction number, because it is equal to n+sod(n) for n = 127884594 and 127884603.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2523 + ... + 16190.

It is an arithmetic number, because the mean of its divisors is an integer number (8589726).

Almost surely, 2^127884642 is an apocalyptic number.

127884642 is an abundant number, since it is smaller than the sum of its proper divisors (146986590).

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

127884642 is a wasteful number, since it uses less digits than its factorization.

127884642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18802.

The product of its digits is 172032, while the sum is 42.

The square root of 127884642 is about 11308.6091983055. The cubic root of 127884642 is about 503.8169765655.

The spelling of 127884642 in words is "one hundred twenty-seven million, eight hundred eighty-four thousand, six hundred forty-two".