1442410221 has 16 divisors (see below), whose sum is σ = 2198851200. Its totient is φ = 823899648.

The previous prime is 1442410199. The next prime is 1442410223. The reversal of 1442410221 is 1220142441.

It is not a de Polignac number, because 1442410221 - 2⁷ = 1442410093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442410223) 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, 44725 + ... + 69893.

It is an arithmetic number, because the mean of its divisors is an integer number (137428200).

Almost surely, 2^1442410221 is an apocalyptic number.

It is an amenable number.

1442410221 is a deficient number, since it is larger than the sum of its proper divisors (756440979).

1442410221 is a wasteful number, since it uses less digits than its factorization.

1442410221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27908.

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

The square root of 1442410221 is about 37979.0760946077. The cubic root of 1442410221 is about 1129.8729125876.

Adding to 1442410221 its reverse (1220142441), we get a palindrome (2662552662).

The spelling of 1442410221 in words is "one billion, four hundred forty-two million, four hundred ten thousand, two hundred twenty-one".