140444 has 6 divisors (see below), whose sum is σ = 245784. Its totient is φ = 70220.

The previous prime is 140443. The next prime is 140449. The reversal of 140444 is 444041.

140444 is a modest number, since divided by 444 gives 140 as remainder.

It is a plaindrome in base 9 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140443) 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 as a sum of consecutive naturals, namely, 17552 + ... + 17559.

It is an arithmetic number, because the mean of its divisors is an integer number (40964).

2¹⁴⁰⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

140444 is a deficient number, since it is larger than the sum of its proper divisors (105340).

140444 is a wasteful number, since it uses less digits than its factorization.

140444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35115 (or 35113 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 140444 is about 374.7585889609. The cubic root of 140444 is about 51.9797751723.

Adding to 140444 its reverse (444041), we get a palindrome (584485).

It can be divided in two parts, 1404 and 44, that multiplied together give a triangular number (61776 = T₃₅₁).

The spelling of 140444 in words is "one hundred forty thousand, four hundred forty-four", and thus it is an iban number.