127326640 has 80 divisors (see below), whose sum is σ = 339978240. Its totient is φ = 43441920.

The previous prime is 127326623. The next prime is 127326649. The reversal of 127326640 is 46623721.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (127326649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151341 + ... + 152179.

It is an arithmetic number, because the mean of its divisors is an integer number (4249728).

Almost surely, 2^127326640 is an apocalyptic number.

127326640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127326640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169989120).

127326640 is an abundant number, since it is smaller than the sum of its proper divisors (212651600).

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

127326640 is a wasteful number, since it uses less digits than its factorization.

127326640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 127326640 is about 11283.9106696216. The cubic root of 127326640 is about 503.0831361332.

The spelling of 127326640 in words is "one hundred twenty-seven million, three hundred twenty-six thousand, six hundred forty".