538744 has 8 divisors (see below), whose sum is σ = 1010160. Its totient is φ = 269368.

The previous prime is 538739. The next prime is 538751. The reversal of 538744 is 447835.

It is a tau number, because it is divible by the number of its divisors (8).

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33664 + ... + 33679.

It is an arithmetic number, because the mean of its divisors is an integer number (126270).

2⁵³⁸⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

538744 is a deficient number, since it is larger than the sum of its proper divisors (471416).

538744 is a wasteful number, since it uses less digits than its factorization.

538744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67349 (or 67345 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 538744 is about 733.9918255676. The cubic root of 538744 is about 81.3693441420.

Subtracting from 538744 its reverse (447835), we obtain a palindrome (90909).

It can be divided in two parts, 53874 and 4, that multiplied together give a triangular number (215496 = T₆₅₆).

The spelling of 538744 in words is "five hundred thirty-eight thousand, seven hundred forty-four".