6622428 has 24 divisors (see below), whose sum is σ = 15542800. Its totient is φ = 2194560.

The previous prime is 6622423. The next prime is 6622457. The reversal of 6622428 is 8242266.

It is a junction number, because it is equal to n+sod(n) for n = 6622395 and 6622404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6622423) 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 7 ways as a sum of consecutive naturals, for example, 648 + ... + 3696.

Almost surely, 2^6622428 is an apocalyptic number.

It is an amenable number.

6622428 is an abundant number, since it is smaller than the sum of its proper divisors (8920372).

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

6622428 is a wasteful number, since it uses less digits than its factorization.

6622428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3237 (or 3235 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 6622428 is about 2573.4078572974. The cubic root of 6622428 is about 187.7899797426.

The spelling of 6622428 in words is "six million, six hundred twenty-two thousand, four hundred twenty-eight".