428336 has 20 divisors (see below), whose sum is σ = 874200. Its totient is φ = 202752.

The previous prime is 428303. The next prime is 428339. The reversal of 428336 is 633824.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (428339) by changing a digit.

428336 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401 + ... + 1008.

It is an arithmetic number, because the mean of its divisors is an integer number (43710).

2⁴²⁸³³⁶ is an apocalyptic number.

It is an amenable number.

428336 is an abundant number, since it is smaller than the sum of its proper divisors (445864).

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

428336 is a wasteful number, since it uses less digits than its factorization.

428336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436 (or 1430 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 428336 is about 654.4738344655. The cubic root of 428336 is about 75.3809359688.

The spelling of 428336 in words is "four hundred twenty-eight thousand, three hundred thirty-six".