539744 has 24 divisors (see below), whose sum is σ = 1079568. Its totient is φ = 265600.

The previous prime is 539743. The next prime is 539761. The reversal of 539744 is 447935.

539744 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a d-powerful number, because it can be written as 5⁵ + 3¹² + 7² + 9 + 4⁵ + 4⁶ .

Its product of digits (15120) is a multiple of the sum of its prime divisors (270).

It is a self number, because there is not a number n which added to its sum of digits gives 539744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3149 + ... + 3315.

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

2⁵³⁹⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

539744 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a weird number, because it is abundant, but not a pseudoperfect number.

539744 is a wasteful number, since it uses less digits than its factorization.

539744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 270 counting only the distinct ones).

The product of its digits is 15120, while the sum is 32.

The square root of 539744 is about 734.6727162485. The cubic root of 539744 is about 81.4196581136.

Subtracting from 539744 its reverse (447935), we obtain a square (91809 = 303²).

The spelling of 539744 in words is "five hundred thirty-nine thousand, seven hundred forty-four".