127606640 has 40 divisors (see below), whose sum is σ = 339070560. Its totient is φ = 43750656.

The previous prime is 127606613. The next prime is 127606649. The reversal of 127606640 is 46606721.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 127606597 and 127606606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127606649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113375 + ... + 114494.

It is an arithmetic number, because the mean of its divisors is an integer number (8476764).

Almost surely, 2^127606640 is an apocalyptic number.

127606640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127606640 is an abundant number, since it is smaller than the sum of its proper divisors (211463920).

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

127606640 is a wasteful number, since it uses less digits than its factorization.

127606640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227889 (or 227883 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 127606640 is about 11296.3109022371. The cubic root of 127606640 is about 503.4516375667.

The spelling of 127606640 in words is "one hundred twenty-seven million, six hundred six thousand, six hundred forty".