44022240421 has 4 divisors (see below), whose sum is σ = 45095953644. Its totient is φ = 42948527200.

The previous prime is 44022240403. The next prime is 44022240443. The reversal of 44022240421 is 12404222044.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19775390625 + 24246849796 = 140625^2 + 155714^2 .

It is a cyclic number.

It is not a de Polignac number, because 44022240421 - 2¹⁷ = 44022109349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44022240481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536856550 + ... + 536856631.

It is an arithmetic number, because the mean of its divisors is an integer number (11273988411).

Almost surely, 2^44022240421 is an apocalyptic number.

44022240421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

44022240421 is a deficient number, since it is larger than the sum of its proper divisors (1073713223).

44022240421 is a wasteful number, since it uses less digits than its factorization.

44022240421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073713222.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 44022240421 its reverse (12404222044), we get a palindrome (56426462465).

The spelling of 44022240421 in words is "forty-four billion, twenty-two million, two hundred forty thousand, four hundred twenty-one".