428545855 has 16 divisors (see below), whose sum is σ = 542545920. Its totient is φ = 324057888.

The previous prime is 428545841. The next prime is 428545889. The reversal of 428545855 is 558545824.

It is a cyclic number.

It is not a de Polignac number, because 428545855 - 2⁵ = 428545823 is a prime.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 39114 + ... + 48856.

It is an arithmetic number, because the mean of its divisors is an integer number (33909120).

Almost surely, 2^428545855 is an apocalyptic number.

428545855 is a deficient number, since it is larger than the sum of its proper divisors (114000065).

428545855 is a wasteful number, since it uses less digits than its factorization.

428545855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10230.

The product of its digits is 1280000, while the sum is 46.

The square root of 428545855 is about 20701.3491106256. The cubic root of 428545855 is about 753.9324443974.

The spelling of 428545855 in words is "four hundred twenty-eight million, five hundred forty-five thousand, eight hundred fifty-five".