127428090 has 32 divisors (see below), whose sum is σ = 323818560. Its totient is φ = 31981824.

The previous prime is 127428089. The next prime is 127428097. The reversal of 127428090 is 90824721.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (127428097) 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, 124420 + ... + 125439.

It is an arithmetic number, because the mean of its divisors is an integer number (10119330).

Almost surely, 2^127428090 is an apocalyptic number.

127428090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127428090 is an abundant number, since it is smaller than the sum of its proper divisors (196390470).

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

127428090 is a wasteful number, since it uses less digits than its factorization.

127428090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249886.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 127428090 is about 11288.4051132124. The cubic root of 127428090 is about 503.2167144507.

The spelling of 127428090 in words is "one hundred twenty-seven million, four hundred twenty-eight thousand, ninety".