3428238 has 32 divisors (see below), whose sum is σ = 7557120. Its totient is φ = 1028160.

The previous prime is 3428231. The next prime is 3428239. The reversal of 3428238 is 8328243.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3428231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8178 + ... + 8586.

It is an arithmetic number, because the mean of its divisors is an integer number (236160).

Almost surely, 2^3428238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3428238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3778560).

3428238 is an abundant number, since it is smaller than the sum of its proper divisors (4128882).

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

3428238 is a wasteful number, since it uses less digits than its factorization.

3428238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552.

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

The square root of 3428238 is about 1851.5501613513. The cubic root of 3428238 is about 150.7845999748.

The spelling of 3428238 in words is "three million, four hundred twenty-eight thousand, two hundred thirty-eight".