140824 has 16 divisors (see below), whose sum is σ = 273600. Its totient is φ = 67872.

The previous prime is 140813. The next prime is 140827. The reversal of 140824 is 428041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140827) by changing a digit.

140824 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, 72 + ... + 535.

It is an arithmetic number, because the mean of its divisors is an integer number (17100).

2¹⁴⁰⁸²⁴ is an apocalyptic number.

It is an amenable number.

140824 is a deficient number, since it is larger than the sum of its proper divisors (132776).

140824 is a wasteful number, since it uses less digits than its factorization.

140824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 140824 is about 375.2652395307. The cubic root of 140824 is about 52.0266135958.

Adding to 140824 its reverse (428041), we get a palindrome (568865).

The spelling of 140824 in words is "one hundred forty thousand, eight hundred twenty-four".