1442797469 has 2 divisors, whose sum is σ = 1442797470. Its totient is φ = 1442797468.

The previous prime is 1442797439. The next prime is 1442797483. The reversal of 1442797469 is 9647972441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1026433444 + 416364025 = 32038^2 + 20405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442797469 is a prime.

It is a super-2 number, since 2×1442797469² = 4163329073105611922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1442797469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442797439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721398734 + 721398735.

It is an arithmetic number, because the mean of its divisors is an integer number (721398735).

Almost surely, 2^1442797469 is an apocalyptic number.

It is an amenable number.

1442797469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442797469 is an equidigital number, since it uses as much as digits as its factorization.

1442797469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 53.

The square root of 1442797469 is about 37984.1739280980. The cubic root of 1442797469 is about 1129.9740169450.

The spelling of 1442797469 in words is "one billion, four hundred forty-two million, seven hundred ninety-seven thousand, four hundred sixty-nine".