127274640 has 80 divisors (see below), whose sum is σ = 411723648. Its totient is φ = 32462848.

The previous prime is 127274633. The next prime is 127274657. The reversal of 127274640 is 46472721.

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

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, 6009 + ... + 17048.

Almost surely, 2^127274640 is an apocalyptic number.

127274640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127274640 is an abundant number, since it is smaller than the sum of its proper divisors (284449008).

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

127274640 is a wasteful number, since it uses less digits than its factorization.

127274640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23096 (or 23090 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 127274640 is about 11281.6062686126. The cubic root of 127274640 is about 503.0146406868.

The spelling of 127274640 in words is "one hundred twenty-seven million, two hundred seventy-four thousand, six hundred forty".