544140 has 36 divisors (see below), whose sum is σ = 1651104. Its totient is φ = 145056.

The previous prime is 544139. The next prime is 544171. The reversal of 544140 is 41445.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1332 + ... + 1691.

It is an arithmetic number, because the mean of its divisors is an integer number (45864).

2⁵⁴⁴¹⁴⁰ is an apocalyptic number.

It is an amenable number.

544140 is an abundant number, since it is smaller than the sum of its proper divisors (1106964).

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

544140 is a wasteful number, since it uses less digits than its factorization.

544140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038 (or 3033 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 544140 is about 737.6584575534. The cubic root of 544140 is about 81.6401042773.

Adding to 544140 its reverse (41445), we get a palindrome (585585).

The spelling of 544140 in words is "five hundred forty-four thousand, one hundred forty".