428872055 has 16 divisors (see below), whose sum is σ = 519190560. Its totient is φ = 340082688.

The previous prime is 428872051. The next prime is 428872057. The reversal of 428872055 is 550278824.

It is a cyclic number.

It is not a de Polignac number, because 428872055 - 2² = 428872051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428872051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340016 + ... + 341274.

It is an arithmetic number, because the mean of its divisors is an integer number (32449410).

Almost surely, 2^428872055 is an apocalyptic number.

428872055 is a deficient number, since it is larger than the sum of its proper divisors (90318505).

428872055 is a wasteful number, since it uses less digits than its factorization.

428872055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 428872055 is about 20709.2263254811. The cubic root of 428872055 is about 754.1236883349.

The spelling of 428872055 in words is "four hundred twenty-eight million, eight hundred seventy-two thousand, fifty-five".