127428132 has 24 divisors (see below), whose sum is σ = 320204416. Its totient is φ = 39208608.

The previous prime is 127428121. The next prime is 127428137. The reversal of 127428132 is 231824721.

It is a self number, because there is not a number n which added to its sum of digits gives 127428132.

It is not an unprimeable number, because it can be changed into a prime (127428137) 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, 408268 + ... + 408579.

Almost surely, 2^127428132 is an apocalyptic number.

127428132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127428132 is an abundant number, since it is smaller than the sum of its proper divisors (192776284).

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

127428132 is a wasteful number, since it uses less digits than its factorization.

127428132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816867 (or 816865 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 127428132 is about 11288.4069735282. The cubic root of 127428132 is about 503.2167697371.

The spelling of 127428132 in words is "one hundred twenty-seven million, four hundred twenty-eight thousand, one hundred thirty-two".