6428418 has 16 divisors (see below), whose sum is σ = 12882240. Its totient is φ = 2138576.

The previous prime is 6428407. The next prime is 6428419. The reversal of 6428418 is 8148246.

It is not an unprimeable number, because it can be changed into a prime (6428419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4396 + ... + 5672.

It is an arithmetic number, because the mean of its divisors is an integer number (805140).

Almost surely, 2^6428418 is an apocalyptic number.

6428418 is an abundant number, since it is smaller than the sum of its proper divisors (6453822).

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

6428418 is a wasteful number, since it uses less digits than its factorization.

6428418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121.

The product of its digits is 12288, while the sum is 33.

The square root of 6428418 is about 2535.4325074827. The cubic root of 6428418 is about 185.9379490091.

It can be divided in two parts, 64 and 28418, that added together give a palindrome (28482).

The spelling of 6428418 in words is "six million, four hundred twenty-eight thousand, four hundred eighteen".