140424244 has 6 divisors (see below), whose sum is σ = 245742434. Its totient is φ = 70212120.

The previous prime is 140424241. The next prime is 140424259. The reversal of 140424244 is 442424041.

140424244 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 97022500 + 43401744 = 9850^2 + 6588^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140424241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17553027 + ... + 17553034.

Almost surely, 2^140424244 is an apocalyptic number.

It is an amenable number.

140424244 is a deficient number, since it is larger than the sum of its proper divisors (105318190).

140424244 is a wasteful number, since it uses less digits than its factorization.

140424244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35106065 (or 35106063 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 140424244 is about 11850.0735862694. The cubic root of 140424244 is about 519.7733775809.

Adding to 140424244 its reverse (442424041), we get a palindrome (582848285).

The spelling of 140424244 in words is "one hundred forty million, four hundred twenty-four thousand, two hundred forty-four".