6406228 has 18 divisors (see below), whose sum is σ = 11395118. Its totient is φ = 3151200.

The previous prime is 6406219. The next prime is 6406247. The reversal of 6406228 is 8226046.

It can be written as a sum of positive squares in 3 ways, for example, as 3755844 + 2650384 = 1938^2 + 1628^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6406196 and 6406205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40726 + ... + 40882.

Almost surely, 2^6406228 is an apocalyptic number.

It is an amenable number.

6406228 is a deficient number, since it is larger than the sum of its proper divisors (4988890).

6406228 is a wasteful number, since it uses less digits than its factorization.

6406228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 6406228 is about 2531.0527454006. The cubic root of 6406228 is about 185.7237584348.

The spelling of 6406228 in words is "six million, four hundred six thousand, two hundred twenty-eight".