4238138 has 8 divisors (see below), whose sum is σ = 6415860. Its totient is φ = 2099520.

The previous prime is 4238119. The next prime is 4238149. The reversal of 4238138 is 8318324.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4231249 + 6889 = 2057^2 + 83^2 .

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

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4238138.

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, 9503 + ... + 9938.

Almost surely, 2^4238138 is an apocalyptic number.

4238138 is a deficient number, since it is larger than the sum of its proper divisors (2177722).

4238138 is a wasteful number, since it uses less digits than its factorization.

4238138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19552.

The product of its digits is 4608, while the sum is 29.

The square root of 4238138 is about 2058.6738449788. The cubic root of 4238138 is about 161.8297505243.

The spelling of 4238138 in words is "four million, two hundred thirty-eight thousand, one hundred thirty-eight".