140928 has 32 divisors (see below), whose sum is σ = 375360. Its totient is φ = 46848.

The previous prime is 140909. The next prime is 140929. The reversal of 140928 is 829041.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 140898 and 140907.

It is not an unprimeable number, because it can be changed into a prime (140929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201 + ... + 567.

It is an arithmetic number, because the mean of its divisors is an integer number (11730).

2¹⁴⁰⁹²⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187680).

140928 is an abundant number, since it is smaller than the sum of its proper divisors (234432).

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

140928 is an equidigital number, since it uses as much as digits as its factorization.

140928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 140928 is about 375.4037826128. The cubic root of 140928 is about 52.0394178441.

Adding to 140928 its reverse (829041), we get a palindrome (969969).

The spelling of 140928 in words is "one hundred forty thousand, nine hundred twenty-eight".