428539055 has 32 divisors (see below), whose sum is σ = 607488000. Its totient is φ = 290043936.

The previous prime is 428539051. The next prime is 428539063. The reversal of 428539055 is 550935824.

It is not a de Polignac number, because 428539055 - 2² = 428539051 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428539051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133904 + ... + 137066.

It is an arithmetic number, because the mean of its divisors is an integer number (18984000).

Almost surely, 2^428539055 is an apocalyptic number.

428539055 is a deficient number, since it is larger than the sum of its proper divisors (178948945).

428539055 is an equidigital number, since it uses as much as digits as its factorization.

428539055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3268 (or 3254 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 41.

The square root of 428539055 is about 20701.1848694706. The cubic root of 428539055 is about 753.9284566734.

The spelling of 428539055 in words is "four hundred twenty-eight million, five hundred thirty-nine thousand, fifty-five".