428588955 has 96 divisors (see below), whose sum is σ = 834131520. Its totient is φ = 208051200.

The previous prime is 428588933. The next prime is 428588959. The reversal of 428588955 is 559885824.

It is a happy number.

428588955 is a `hidden beast` number, since 4 + 2 + 8 + 588 + 9 + 55 = 666.

It is not a de Polignac number, because 428588955 - 2⁶ = 428588891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428588959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4243405 + ... + 4243505.

It is an arithmetic number, because the mean of its divisors is an integer number (8688870).

Almost surely, 2^428588955 is an apocalyptic number.

428588955 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

428588955 is a deficient number, since it is larger than the sum of its proper divisors (405542565).

428588955 is a wasteful number, since it uses less digits than its factorization.

428588955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 169 counting only the distinct ones).

The product of its digits is 4608000, while the sum is 54.

The square root of 428588955 is about 20702.3900794087. The cubic root of 428588955 is about 753.9577185493.

The spelling of 428588955 in words is "four hundred twenty-eight million, five hundred eighty-eight thousand, nine hundred fifty-five".