201420043444 has 24 divisors (see below), whose sum is σ = 354709958400. Its totient is φ = 100074559104.

The previous prime is 201420043403. The next prime is 201420043457. The reversal of 201420043444 is 444340024102.

It is a super-2 number, since 2×201420043444² (a number of 23 digits) contains 22 as substring.

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, 4180797 + ... + 4228699.

It is an arithmetic number, because the mean of its divisors is an integer number (14779581600).

Almost surely, 2^201420043444 is an apocalyptic number.

It is an amenable number.

201420043444 is a deficient number, since it is larger than the sum of its proper divisors (153289914956).

201420043444 is a wasteful number, since it uses less digits than its factorization.

201420043444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54519 (or 54517 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 201420043444 its reverse (444340024102), we get a palindrome (645760067546).

The spelling of 201420043444 in words is "two hundred one billion, four hundred twenty million, forty-three thousand, four hundred forty-four".