1538238 has 48 divisors (see below), whose sum is σ = 3504816. Its totient is φ = 449280.

The previous prime is 1538233. The next prime is 1538261. The reversal of 1538238 is 8328351.

It is a happy number.

1538238 is nontrivially palindromic in base 12.

It is a super-2 number, since 2×1538238² = 4732352289288, which contains 22 as substring.

Its product of digits (5760) is a multiple of the sum of its prime divisors (96).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37498 + ... + 37538.

It is an arithmetic number, because the mean of its divisors is an integer number (73017).

2^1538238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1538238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1752408).

1538238 is an abundant number, since it is smaller than the sum of its proper divisors (1966578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1538238 is a wasteful number, since it uses less digits than its factorization.

1538238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 96 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 1538238 is about 1240.2572313839. The cubic root of 1538238 is about 115.4359758357.

The spelling of 1538238 in words is "one million, five hundred thirty-eight thousand, two hundred thirty-eight".