201244424 has 8 divisors (see below), whose sum is σ = 377333310. Its totient is φ = 100622208.

The previous prime is 201244403. The next prime is 201244451. The reversal of 201244424 is 424442102.

It can be written as a sum of positive squares in only one way, i.e., 141181924 + 60062500 = 11882^2 + 7750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 201244424.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12577769 + ... + 12577784.

Almost surely, 2^201244424 is an apocalyptic number.

It is an amenable number.

201244424 is a deficient number, since it is larger than the sum of its proper divisors (176088886).

201244424 is a wasteful number, since it uses less digits than its factorization.

201244424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25155559 (or 25155555 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 201244424 is about 14186.0644295731. The cubic root of 201244424 is about 586.0139466370.

Adding to 201244424 its reverse (424442102), we get a palindrome (625686526).

The spelling of 201244424 in words is "two hundred one million, two hundred forty-four thousand, four hundred twenty-four".