4258138 has 4 divisors (see below), whose sum is σ = 6387210. Its totient is φ = 2129068.

The previous prime is 4258127. The next prime is 4258139. The reversal of 4258138 is 8318524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2601769 + 1656369 = 1613^2 + 1287^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (4258139) by changing a digit.

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 as a sum of consecutive naturals, namely, 1064533 + ... + 1064536.

Almost surely, 2^4258138 is an apocalyptic number.

4258138 is a deficient number, since it is larger than the sum of its proper divisors (2129072).

4258138 is a wasteful number, since it uses less digits than its factorization.

4258138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129071.

The product of its digits is 7680, while the sum is 31.

The square root of 4258138 is about 2063.5256237808. The cubic root of 4258138 is about 162.0839122257.

The spelling of 4258138 in words is "four million, two hundred fifty-eight thousand, one hundred thirty-eight".