140328 has 24 divisors (see below), whose sum is σ = 380250. Its totient is φ = 46752.

The previous prime is 140321. The next prime is 140333. The reversal of 140328 is 823041.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 101124 + 39204 = 318^2 + 198^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a self number, because there is not a number n which added to its sum of digits gives 140328.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 140328.

It is not an unprimeable number, because it can be changed into a prime (140321) 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 5 ways as a sum of consecutive naturals, for example, 903 + ... + 1046.

2¹⁴⁰³²⁸ is an apocalyptic number.

140328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

140328 is an abundant number, since it is smaller than the sum of its proper divisors (239922).

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

140328 is a wasteful number, since it uses less digits than its factorization.

140328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961 (or 1954 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 140328 is about 374.6037906909. The cubic root of 140328 is about 51.9654602977.

Adding to 140328 its reverse (823041), we get a palindrome (963369).

It can be divided in two parts, 1403 and 28, that added together give a triangular number (1431 = T₅₃).

The spelling of 140328 in words is "one hundred forty thousand, three hundred twenty-eight".