3744442221 has 16 divisors (see below), whose sum is σ = 5382913536. Its totient is φ = 2301581376.

The previous prime is 3744442183. The next prime is 3744442223. The reversal of 3744442221 is 1222444473.

3744442221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3744442221 - 2¹⁴ = 3744425837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3744442223) 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, 21970 + ... + 89283.

It is an arithmetic number, because the mean of its divisors is an integer number (336432096).

Almost surely, 2^3744442221 is an apocalyptic number.

It is an amenable number.

3744442221 is a deficient number, since it is larger than the sum of its proper divisors (1638471315).

3744442221 is a wasteful number, since it uses less digits than its factorization.

3744442221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112132.

The product of its digits is 43008, while the sum is 33.

The square root of 3744442221 is about 61191.8476678062. The cubic root of 3744442221 is about 1552.8483485294.

Adding to 3744442221 its reverse (1222444473), we get a palindrome (4966886694).

The spelling of 3744442221 in words is "three billion, seven hundred forty-four million, four hundred forty-two thousand, two hundred twenty-one".