1420242443 has 12 divisors (see below), whose sum is σ = 1450856160. Its totient is φ = 1390243680.

The previous prime is 1420242427. The next prime is 1420242449. The reversal of 1420242443 is 3442420241.

It is a happy number.

It is not a de Polignac number, because 1420242443 - 2⁴ = 1420242427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420242449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 888521 + ... + 890117.

It is an arithmetic number, because the mean of its divisors is an integer number (120904680).

Almost surely, 2^1420242443 is an apocalyptic number.

1420242443 is a deficient number, since it is larger than the sum of its proper divisors (30613717).

1420242443 is an equidigital number, since it uses as much as digits as its factorization.

1420242443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958 (or 1897 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 1420242443 is about 37686.1041101359. The cubic root of 1420242443 is about 1124.0548289828.

Adding to 1420242443 its reverse (3442420241), we get a palindrome (4862662684).

The spelling of 1420242443 in words is "one billion, four hundred twenty million, two hundred forty-two thousand, four hundred forty-three".