201044440040 has 16 divisors (see below), whose sum is σ = 452349990180. Its totient is φ = 80417776000.

The previous prime is 201044440033. The next prime is 201044440123. The reversal of 201044440040 is 40044440102.

It can be written as a sum of positive squares in 2 ways, for example, as 198019660036 + 3024780004 = 444994^2 + 54998^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201044439988 and 201044440015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2513055461 + ... + 2513055540.

Almost surely, 2^201044440040 is an apocalyptic number.

201044440040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201044440040 is an abundant number, since it is smaller than the sum of its proper divisors (251305550140).

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

201044440040 is a wasteful number, since it uses less digits than its factorization.

201044440040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5026111012 (or 5026111008 counting only the distinct ones).

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

Adding to 201044440040 its reverse (40044440102), we get a palindrome (241088880142).

The spelling of 201044440040 in words is "two hundred one billion, forty-four million, four hundred forty thousand, forty".