4538138 has 8 divisors (see below), whose sum is σ = 7426080. Its totient is φ = 2062780.

The previous prime is 4538137. The next prime is 4538143. The reversal of 4538138 is 8318354.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (4538137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103118 + ... + 103161.

It is an arithmetic number, because the mean of its divisors is an integer number (928260).

Almost surely, 2^4538138 is an apocalyptic number.

4538138 is a deficient number, since it is larger than the sum of its proper divisors (2887942).

4538138 is a wasteful number, since it uses less digits than its factorization.

4538138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206292.

The product of its digits is 11520, while the sum is 32.

The square root of 4538138 is about 2130.2905905064. The cubic root of 4538138 is about 165.5614543456.

It can be divided in two parts, 45 and 38138, that added together give a palindrome (38183).

The spelling of 4538138 in words is "four million, five hundred thirty-eight thousand, one hundred thirty-eight".