8426428 has 12 divisors (see below), whose sum is σ = 14773192. Its totient is φ = 4205520.

The previous prime is 8426419. The next prime is 8426449. The reversal of 8426428 is 8246248.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 8426393 and 8426402.

It is a congruent number.

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, 1051 + ... + 4237.

Almost surely, 2^8426428 is an apocalyptic number.

It is an amenable number.

8426428 is a deficient number, since it is larger than the sum of its proper divisors (6346764).

8426428 is a wasteful number, since it uses less digits than its factorization.

8426428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3852 (or 3850 counting only the distinct ones).

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

The square root of 8426428 is about 2902.8310319411. The cubic root of 8426428 is about 203.4922332818.

The spelling of 8426428 in words is "eight million, four hundred twenty-six thousand, four hundred twenty-eight".