1442001021 has 16 divisors (see below), whose sum is σ = 1955583168. Its totient is φ = 944899200.

The previous prime is 1442001019. The next prime is 1442001049. The reversal of 1442001021 is 1201002441.

It is not a de Polignac number, because 1442001021 - 2¹ = 1442001019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442001061) 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, 477406 + ... + 480416.

It is an arithmetic number, because the mean of its divisors is an integer number (122223948).

Almost surely, 2^1442001021 is an apocalyptic number.

It is an amenable number.

1442001021 is a deficient number, since it is larger than the sum of its proper divisors (513582147).

1442001021 is a wasteful number, since it uses less digits than its factorization.

1442001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5692.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1442001021 is about 37973.6885356163. The cubic root of 1442001021 is about 1129.7660572430.

Adding to 1442001021 its reverse (1201002441), we get a palindrome (2643003462).

The spelling of 1442001021 in words is "one billion, four hundred forty-two million, one thousand, twenty-one".