140828 has 24 divisors (see below), whose sum is σ = 277200. Its totient is φ = 62208.

The previous prime is 140827. The next prime is 140831. The reversal of 140828 is 828041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140827) 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 7 ways as a sum of consecutive naturals, for example, 1238 + ... + 1346.

It is an arithmetic number, because the mean of its divisors is an integer number (11550).

2¹⁴⁰⁸²⁸ is an apocalyptic number.

It is an amenable number.

140828 is a deficient number, since it is larger than the sum of its proper divisors (136372).

140828 is a wasteful number, since it uses less digits than its factorization.

140828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 140828 is about 375.2705690565. The cubic root of 140828 is about 52.0271061834.

Adding to 140828 its reverse (828041), we get a palindrome (968869).

The spelling of 140828 in words is "one hundred forty thousand, eight hundred twenty-eight".