8490128 has 20 divisors (see below), whose sum is σ = 17165568. Its totient is φ = 4060320.

The previous prime is 8490121. The next prime is 8490133. The reversal of 8490128 is 8210948.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8490094 and 8490103.

It is not an unprimeable number, because it can be changed into a prime (8490121) 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, 11168 + ... + 11903.

Almost surely, 2^8490128 is an apocalyptic number.

It is an amenable number.

8490128 is an abundant number, since it is smaller than the sum of its proper divisors (8675440).

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

8490128 is a wasteful number, since it uses less digits than its factorization.

8490128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23102 (or 23096 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 8490128 is about 2913.7824215270. The cubic root of 8490128 is about 204.0037164516.

The spelling of 8490128 in words is "eight million, four hundred ninety thousand, one hundred twenty-eight".