101440244 has 6 divisors (see below), whose sum is σ = 177520434. Its totient is φ = 50720120.

The previous prime is 101440201. The next prime is 101440253. The reversal of 101440244 is 442044101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 101404900 + 35344 = 10070^2 + 188^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12680027 + ... + 12680034.

It is an arithmetic number, because the mean of its divisors is an integer number (29586739).

Almost surely, 2^101440244 is an apocalyptic number.

It is an amenable number.

101440244 is a deficient number, since it is larger than the sum of its proper divisors (76080190).

101440244 is a wasteful number, since it uses less digits than its factorization.

101440244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25360065 (or 25360063 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 101440244 is about 10071.7547627015. The cubic root of 101440244 is about 466.3766104561.

Adding to 101440244 its reverse (442044101), we get a palindrome (543484345).

The spelling of 101440244 in words is "one hundred one million, four hundred forty thousand, two hundred forty-four".