4444342421 has 16 divisors (see below), whose sum is σ = 4761600000. Its totient is φ = 4135964976.

The previous prime is 4444342403. The next prime is 4444342471. The reversal of 4444342421 is 1242434444.

It is a cyclic number.

It is not a de Polignac number, because 4444342421 - 2²² = 4440148117 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 (4444342471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291260 + ... + 306138.

It is an arithmetic number, because the mean of its divisors is an integer number (297600000).

Almost surely, 2^4444342421 is an apocalyptic number.

It is an amenable number.

4444342421 is a deficient number, since it is larger than the sum of its proper divisors (317257579).

4444342421 is a wasteful number, since it uses less digits than its factorization.

4444342421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15176.

The product of its digits is 49152, while the sum is 32.

The square root of 4444342421 is about 66665.9014864421. The cubic root of 4444342421 is about 1644.1288022182.

Adding to 4444342421 its reverse (1242434444), we get a palindrome (5686776865).

The spelling of 4444342421 in words is "four billion, four hundred forty-four million, three hundred forty-two thousand, four hundred twenty-one".