428284 has 6 divisors (see below), whose sum is σ = 749504. Its totient is φ = 214140.

The previous prime is 428273. The next prime is 428297. The reversal of 428284 is 482824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53532 + ... + 53539.

2⁴²⁸²⁸⁴ is an apocalyptic number.

It is an amenable number.

428284 is a deficient number, since it is larger than the sum of its proper divisors (321220).

428284 is a wasteful number, since it uses less digits than its factorization.

428284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107075 (or 107073 counting only the distinct ones).

The product of its digits is 4096, while the sum is 28.

The square root of 428284 is about 654.4341066907. The cubic root of 428284 is about 75.3778854296.

The spelling of 428284 in words is "four hundred twenty-eight thousand, two hundred eighty-four".