8428264 has 16 divisors (see below), whose sum is σ = 17018820. Its totient is φ = 3889920.

The previous prime is 8428237. The next prime is 8428289. The reversal of 8428264 is 4628248.

It can be written as a sum of positive squares in 2 ways, for example, as 8168164 + 260100 = 2858^2 + 510^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 8³ + 4² + 2¹¹ + 8⁵ + 2²³ + 6³ + 4⁶ .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40417 + ... + 40624.

Almost surely, 2^8428264 is an apocalyptic number.

It is an amenable number.

8428264 is an abundant number, since it is smaller than the sum of its proper divisors (8590556).

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

8428264 is a wasteful number, since it uses less digits than its factorization.

8428264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81060 (or 81056 counting only the distinct ones).

The product of its digits is 24576, while the sum is 34.

The square root of 8428264 is about 2903.1472577188. The cubic root of 8428264 is about 203.5070115726.

The spelling of 8428264 in words is "eight million, four hundred twenty-eight thousand, two hundred sixty-four".