1442221441 has 4 divisors (see below), whose sum is σ = 1442331072. Its totient is φ = 1442111812.

The previous prime is 1442221439. The next prime is 1442221457. The reversal of 1442221441 is 1441222441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1441222441 = 59 ⋅24427499.

It is a cyclic number.

It is not a de Polignac number, because 1442221441 - 2¹ = 1442221439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442221411) 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, 31885 + ... + 62458.

It is an arithmetic number, because the mean of its divisors is an integer number (360582768).

Almost surely, 2^1442221441 is an apocalyptic number.

It is an amenable number.

1442221441 is a deficient number, since it is larger than the sum of its proper divisors (109631).

1442221441 is an equidigital number, since it uses as much as digits as its factorization.

1442221441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109630.

The product of its digits is 2048, while the sum is 25.

The square root of 1442221441 is about 37976.5906974283. The cubic root of 1442221441 is about 1129.8236185400.

Adding to 1442221441 its reverse (1441222441), we get a palindrome (2883443882).

The spelling of 1442221441 in words is "one billion, four hundred forty-two million, two hundred twenty-one thousand, four hundred forty-one".