8490426 has 24 divisors (see below), whose sum is σ = 19753920. Its totient is φ = 2425752.

The previous prime is 8490421. The next prime is 8490439. The reversal of 8490426 is 6240948.

It is a super-2 number, since 2×8490426² = 144174667322952, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8490421) 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 in 11 ways as a sum of consecutive naturals, for example, 14146 + ... + 14733.

It is an arithmetic number, because the mean of its divisors is an integer number (823080).

Almost surely, 2^8490426 is an apocalyptic number.

8490426 is an abundant number, since it is smaller than the sum of its proper divisors (11263494).

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

8490426 is a wasteful number, since it uses less digits than its factorization.

8490426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28898 (or 28891 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 8490426 is about 2913.8335573605. The cubic root of 8490426 is about 204.0061032392.

The spelling of 8490426 in words is "eight million, four hundred ninety thousand, four hundred twenty-six".