8128424 has 8 divisors (see below), whose sum is σ = 15240810. Its totient is φ = 4064208.

The previous prime is 8128423. The next prime is 8128441. The reversal of 8128424 is 4248218.

It can be written as a sum of positive squares in only one way, i.e., 7896100 + 232324 = 2810^2 + 482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (8128423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508019 + ... + 508034.

Almost surely, 2^8128424 is an apocalyptic number.

It is an amenable number.

8128424 is a deficient number, since it is larger than the sum of its proper divisors (7112386).

8128424 is a wasteful number, since it uses less digits than its factorization.

8128424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016059 (or 1016055 counting only the distinct ones).

The product of its digits is 4096, while the sum is 29.

The square root of 8128424 is about 2851.0391088163. The cubic root of 8128424 is about 201.0645238917.

The spelling of 8128424 in words is "eight million, one hundred twenty-eight thousand, four hundred twenty-four".