1446442021 has 4 divisors (see below), whose sum is σ = 1448191872. Its totient is φ = 1444692172.

The previous prime is 1446442007. The next prime is 1446442031. The reversal of 1446442021 is 1202446441.

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.

It is a cyclic number.

It is not a de Polignac number, because 1446442021 - 2⁹ = 1446441509 is a prime.

It is a super-2 number, since 2×1446442021² = 4184389040229128882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1446442031) 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, 873685 + ... + 875338.

It is an arithmetic number, because the mean of its divisors is an integer number (362047968).

Almost surely, 2^1446442021 is an apocalyptic number.

It is an amenable number.

1446442021 is a deficient number, since it is larger than the sum of its proper divisors (1749851).

1446442021 is an equidigital number, since it uses as much as digits as its factorization.

1446442021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749850.

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 1446442021 is about 38032.1182817891. The cubic root of 1446442021 is about 1130.9246669614.

Adding to 1446442021 its reverse (1202446441), we get a palindrome (2648888462).

The spelling of 1446442021 in words is "one billion, four hundred forty-six million, four hundred forty-two thousand, twenty-one".