6426428 has 12 divisors (see below), whose sum is σ = 11358312. Its totient is φ = 3181200.

The previous prime is 6426421. The next prime is 6426437. The reversal of 6426428 is 8246246.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6426394 and 6426403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6426421) 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 3 ways as a sum of consecutive naturals, for example, 7550 + ... + 8357.

It is an arithmetic number, because the mean of its divisors is an integer number (946526).

Almost surely, 2^6426428 is an apocalyptic number.

It is an amenable number.

6426428 is a deficient number, since it is larger than the sum of its proper divisors (4931884).

6426428 is a wasteful number, since it uses less digits than its factorization.

6426428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16012 (or 16010 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 6426428 is about 2535.0400391315. The cubic root of 6426428 is about 185.9187605293.

The spelling of 6426428 in words is "six million, four hundred twenty-six thousand, four hundred twenty-eight".