428324 has 12 divisors (see below), whose sum is σ = 807324. Its totient is φ = 197664.

The previous prime is 428303. The next prime is 428339. The reversal of 428324 is 423824.

It can be written as a sum of positive squares in 2 ways, for example, as 160000 + 268324 = 400^2 + 518^2 .

It is a super-2 number, since 2×428324² = 366922897952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 428324.

It is an unprimeable 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, 4067 + ... + 4170.

It is an arithmetic number, because the mean of its divisors is an integer number (67277).

2⁴²⁸³²⁴ is an apocalyptic number.

It is an amenable number.

428324 is a deficient number, since it is larger than the sum of its proper divisors (379000).

428324 is a wasteful number, since it uses less digits than its factorization.

428324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8254 (or 8252 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 428324 is about 654.4646667315. The cubic root of 428324 is about 75.3802320201.

The spelling of 428324 in words is "four hundred twenty-eight thousand, three hundred twenty-four".