2244043021 has 8 divisors (see below), whose sum is σ = 2504978784. Its totient is φ = 1992595920.

The previous prime is 2244043003. The next prime is 2244043049. The reversal of 2244043021 is 1203404422.

It is a happy number.

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

It is not a de Polignac number, because 2244043021 - 2⁷ = 2244042893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2244042983 and 2244043001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2244043421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2371666 + ... + 2372611.

It is an arithmetic number, because the mean of its divisors is an integer number (313122348).

Almost surely, 2^2244043021 is an apocalyptic number.

It is an amenable number.

2244043021 is a deficient number, since it is larger than the sum of its proper divisors (260935763).

2244043021 is a wasteful number, since it uses less digits than its factorization.

2244043021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4744331.

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

The square root of 2244043021 is about 47371.3312141426. The cubic root of 2244043021 is about 1309.2132527106.

Adding to 2244043021 its reverse (1203404422), we get a palindrome (3447447443).

The spelling of 2244043021 in words is "two billion, two hundred forty-four million, forty-three thousand, twenty-one".