127644090 has 64 divisors (see below), whose sum is σ = 368547840. Its totient is φ = 27639360.

The previous prime is 127644061. The next prime is 127644113. The reversal of 127644090 is 90446721.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 12006 + ... + 19985.

It is an arithmetic number, because the mean of its divisors is an integer number (5758560).

Almost surely, 2^127644090 is an apocalyptic number.

127644090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127644090 is an abundant number, since it is smaller than the sum of its proper divisors (240903750).

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

127644090 is a wasteful number, since it uses less digits than its factorization.

127644090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32027.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 127644090 is about 11297.9684014428. The cubic root of 127644090 is about 503.5008837493.

The spelling of 127644090 in words is "one hundred twenty-seven million, six hundred forty-four thousand, ninety".