538144 has 24 divisors (see below), whose sum is σ = 1079568. Its totient is φ = 264000.

The previous prime is 538127. The next prime is 538147. The reversal of 538144 is 441835.

Its product of digits (1920) is a multiple of the sum of its prime divisors (320).

It is not an unprimeable number, because it can be changed into a prime (538147) by changing a digit.

538144 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2019 + ... + 2269.

It is an arithmetic number, because the mean of its divisors is an integer number (44982).

2⁵³⁸¹⁴⁴ is an apocalyptic number.

It is an amenable number.

538144 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

538144 is a wasteful number, since it uses less digits than its factorization.

538144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 320 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 538144 is about 733.5829878071. The cubic root of 538144 is about 81.3391258677.

Adding to 538144 its reverse (441835), we get a palindrome (979979).

The spelling of 538144 in words is "five hundred thirty-eight thousand, one hundred forty-four".