201128244 has 24 divisors (see below), whose sum is σ = 470157408. Its totient is φ = 66920160.

The previous prime is 201128219. The next prime is 201128251. The reversal of 201128244 is 442821102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8362 + ... + 21729.

It is an arithmetic number, because the mean of its divisors is an integer number (19589892).

Almost surely, 2^201128244 is an apocalyptic number.

It is an amenable number.

201128244 is an abundant number, since it is smaller than the sum of its proper divisors (269029164).

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

201128244 is a wasteful number, since it uses less digits than its factorization.

201128244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30655 (or 30653 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 201128244 is about 14181.9689747228. The cubic root of 201128244 is about 585.9011547646.

Adding to 201128244 its reverse (442821102), we get a palindrome (643949346).

The spelling of 201128244 in words is "two hundred one million, one hundred twenty-eight thousand, two hundred forty-four".