1442041221 has 8 divisors (see below), whose sum is σ = 1935626400. Its totient is φ = 954908432.

The previous prime is 1442041213. The next prime is 1442041231. The reversal of 1442041221 is 1221402441.

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

It is a cyclic number.

It is not a de Polignac number, because 1442041221 - 2³ = 1442041213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442041231) 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, 1612575 + ... + 1613468.

It is an arithmetic number, because the mean of its divisors is an integer number (241953300).

Almost surely, 2^1442041221 is an apocalyptic number.

It is an amenable number.

1442041221 is a deficient number, since it is larger than the sum of its proper divisors (493585179).

1442041221 is a wasteful number, since it uses less digits than its factorization.

1442041221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226195.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1442041221 is about 37974.2178457964. The cubic root of 1442041221 is about 1129.7765556575.

Adding to 1442041221 its reverse (1221402441), we get a palindrome (2663443662).

The spelling of 1442041221 in words is "one billion, four hundred forty-two million, forty-one thousand, two hundred twenty-one".