127408642 has 32 divisors (see below), whose sum is σ = 214462080. Its totient is φ = 56413440.

The previous prime is 127408637. The next prime is 127408657. The reversal of 127408642 is 246804721.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 127408598 and 127408607.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107292 + ... + 108472.

It is an arithmetic number, because the mean of its divisors is an integer number (6701940).

Almost surely, 2^127408642 is an apocalyptic number.

127408642 is a deficient number, since it is larger than the sum of its proper divisors (87053438).

127408642 is a wasteful number, since it uses less digits than its factorization.

127408642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 127408642 is about 11287.5436654748. The cubic root of 127408642 is about 503.1911129355.

The spelling of 127408642 in words is "one hundred twenty-seven million, four hundred eight thousand, six hundred forty-two".