428368 has 20 divisors (see below), whose sum is σ = 851508. Its totient is φ = 208640.

The previous prime is 428353. The next prime is 428369. The reversal of 428368 is 863824.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 53824 + 374544 = 232^2 + 612^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428369) by changing a digit.

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, 330 + ... + 982.

2⁴²⁸³⁶⁸ is an apocalyptic number.

It is an amenable number.

428368 is a deficient number, since it is larger than the sum of its proper divisors (423140).

428368 is a wasteful number, since it uses less digits than its factorization.

428368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702 (or 696 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 428368 is about 654.4982811284. The cubic root of 428368 is about 75.3828131010.

The spelling of 428368 in words is "four hundred twenty-eight thousand, three hundred sixty-eight".