428280184 has 64 divisors (see below), whose sum is σ = 868190400. Its totient is φ = 197351424.

The previous prime is 428280173. The next prime is 428280187. The reversal of 428280184 is 481082824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428280187) 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, 2475522 + ... + 2475694.

It is an arithmetic number, because the mean of its divisors is an integer number (13565475).

Almost surely, 2^428280184 is an apocalyptic number.

It is an amenable number.

428280184 is an abundant number, since it is smaller than the sum of its proper divisors (439910216).

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

428280184 is a wasteful number, since it uses less digits than its factorization.

428280184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 37.

The square root of 428280184 is about 20694.9313601181. The cubic root of 428280184 is about 753.7766155722.

The spelling of 428280184 in words is "four hundred twenty-eight million, two hundred eighty thousand, one hundred eighty-four".