6422628 has 12 divisors (see below), whose sum is σ = 14986160. Its totient is φ = 2140872.

The previous prime is 6422599. The next prime is 6422639. The reversal of 6422628 is 8262246.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6422595 and 6422604.

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, 267598 + ... + 267621.

Almost surely, 2^6422628 is an apocalyptic number.

It is an amenable number.

6422628 is an abundant number, since it is smaller than the sum of its proper divisors (8563532).

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

6422628 is a wasteful number, since it uses less digits than its factorization.

6422628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535226 (or 535224 counting only the distinct ones).

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

The square root of 6422628 is about 2534.2904332377. The cubic root of 6422628 is about 185.8821082041.

The spelling of 6422628 in words is "six million, four hundred twenty-two thousand, six hundred twenty-eight".