6428238 has 8 divisors (see below), whose sum is σ = 12856488. Its totient is φ = 2142744.

The previous prime is 6428207. The next prime is 6428263. The reversal of 6428238 is 8328246.

It is a sphenic number, since it is the product of 3 distinct primes.

6428238 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 6428199 and 6428208.

It is a congruent number.

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, 535681 + ... + 535692.

It is an arithmetic number, because the mean of its divisors is an integer number (1607061).

Almost surely, 2^6428238 is an apocalyptic number.

6428238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6428238 is a wasteful number, since it uses less digits than its factorization.

6428238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071378.

The product of its digits is 18432, while the sum is 33.

The square root of 6428238 is about 2535.3970103319. The cubic root of 6428238 is about 185.9362135306.

It can be divided in two parts, 6428 and 238, that added together give a palindrome (6666).

The spelling of 6428238 in words is "six million, four hundred twenty-eight thousand, two hundred thirty-eight".