1420244443 has 4 divisors (see below), whose sum is σ = 1434033328. Its totient is φ = 1406455560.

The previous prime is 1420244417. The next prime is 1420244473. The reversal of 1420244443 is 3444420241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3444420241 = 193 ⋅17846737.

It is a cyclic number.

It is not a de Polignac number, because 1420244443 - 2⁹ = 1420243931 is a prime.

It is a Duffinian number.

It is a zygodrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (1420244473) 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, 6894288 + ... + 6894493.

It is an arithmetic number, because the mean of its divisors is an integer number (358508332).

Almost surely, 2^1420244443 is an apocalyptic number.

1420244443 is a deficient number, since it is larger than the sum of its proper divisors (13788885).

1420244443 is a wasteful number, since it uses less digits than its factorization.

1420244443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13788884.

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 1420244443 is about 37686.1306451060. The cubic root of 1420244443 is about 1124.0553566177.

Adding to 1420244443 its reverse (3444420241), we get a palindrome (4864664684).

The spelling of 1420244443 in words is "one billion, four hundred twenty million, two hundred forty-four thousand, four hundred forty-three".