2238438 has 8 divisors (see below), whose sum is σ = 4476888. Its totient is φ = 746144.

The previous prime is 2238421. The next prime is 2238473. The reversal of 2238438 is 8348322.

2238438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

2238438 is an admirable number.

It is a d-powerful number, because it can be written as 2¹³ + 2¹⁷ + 3⁵ + 8³ + 4⁵ + 3⁵ + 8⁷ .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186531 + ... + 186542.

It is an arithmetic number, because the mean of its divisors is an integer number (559611).

2^2238438 is an apocalyptic number.

2238438 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.

2238438 is a wasteful number, since it uses less digits than its factorization.

2238438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373078.

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

The square root of 2238438 is about 1496.1410361326. The cubic root of 2238438 is about 130.8122322071.

Subtracting from 2238438 its product of digits (9216), we obtain a palindrome (2229222).

It can be divided in two parts, 22384 and 38, that added together give a palindrome (22422).

The spelling of 2238438 in words is "two million, two hundred thirty-eight thousand, four hundred thirty-eight".