201441816 has 40 divisors (see below), whose sum is σ = 564225420. Its totient is φ = 67147056.

The previous prime is 201441811. The next prime is 201441827. The reversal of 201441816 is 618144102.

It is a happy number.

201441816 is a `hidden beast` number, since 201 + 441 + 8 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 201441816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201441811) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 154786 + ... + 156081.

Almost surely, 2^201441816 is an apocalyptic number.

It is an amenable number.

201441816 is an abundant number, since it is smaller than the sum of its proper divisors (362783604).

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

201441816 is a wasteful number, since it uses less digits than its factorization.

201441816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310885 (or 310872 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 201441816 is about 14193.0199746213. The cubic root of 201441816 is about 586.2054826528.

Adding to 201441816 its reverse (618144102), we get a palindrome (819585918).

The spelling of 201441816 in words is "two hundred one million, four hundred forty-one thousand, eight hundred sixteen".