43244200021 has 8 divisors (see below), whose sum is σ = 47178942624. Its totient is φ = 39310032720.

The previous prime is 43244200003. The next prime is 43244200033. The reversal of 43244200021 is 12000244234.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43244200021 - 2¹¹ = 43244197973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43244199965 and 43244200001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43244230021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21631 + ... + 294883.

It is an arithmetic number, because the mean of its divisors is an integer number (5897367828).

Almost surely, 2^43244200021 is an apocalyptic number.

It is an amenable number.

43244200021 is a deficient number, since it is larger than the sum of its proper divisors (3934742603).

43244200021 is a wasteful number, since it uses less digits than its factorization.

43244200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287651.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 43244200021 its reverse (12000244234), we get a palindrome (55244444255).

The spelling of 43244200021 in words is "forty-three billion, two hundred forty-four million, two hundred thousand, twenty-one".