1438238 has 4 divisors (see below), whose sum is σ = 2157360. Its totient is φ = 719118.

The previous prime is 1438237. The next prime is 1438253. The reversal of 1438238 is 8328341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8328341 = 7 ⋅1189763.

It is a self number, because there is not a number n which added to its sum of digits gives 1438238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359558 + ... + 359561.

It is an arithmetic number, because the mean of its divisors is an integer number (539340).

2^1438238 is an apocalyptic number.

1438238 is a deficient number, since it is larger than the sum of its proper divisors (719122).

1438238 is an equidigital number, since it uses as much as digits as its factorization.

1438238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719121.

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

The square root of 1438238 is about 1199.2656086122. The cubic root of 1438238 is about 112.8782461814.

The spelling of 1438238 in words is "one million, four hundred thirty-eight thousand, two hundred thirty-eight".