1442203021 has 8 divisors (see below), whose sum is σ = 1676168640. Its totient is φ = 1215221568.

The previous prime is 1442203001. The next prime is 1442203027. The reversal of 1442203021 is 1203022441.

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 1442203021 - 2⁵ = 1442202989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1442203021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442203027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1745596 + ... + 1746421.

It is an arithmetic number, because the mean of its divisors is an integer number (209521080).

Almost surely, 2^1442203021 is an apocalyptic number.

It is an amenable number.

1442203021 is a deficient number, since it is larger than the sum of its proper divisors (233965619).

1442203021 is an equidigital number, since it uses as much as digits as its factorization.

1442203021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3492083.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1442203021 is about 37976.3481788336. The cubic root of 1442203021 is about 1129.8188084974.

Adding to 1442203021 its reverse (1203022441), we get a palindrome (2645225462).

The spelling of 1442203021 in words is "one billion, four hundred forty-two million, two hundred three thousand, twenty-one".