1442604769 has 2 divisors, whose sum is σ = 1442604770. Its totient is φ = 1442604768.

The previous prime is 1442604763. The next prime is 1442604851. The reversal of 1442604769 is 9674062441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1150023744 + 292581025 = 33912^2 + 17105^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442604769 - 2¹⁹ = 1442080481 is a prime.

It is a super-2 number, since 2×1442604769² = 4162217039083086722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1442604763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721302384 + 721302385.

It is an arithmetic number, because the mean of its divisors is an integer number (721302385).

Almost surely, 2^1442604769 is an apocalyptic number.

It is an amenable number.

1442604769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442604769 is an equidigital number, since it uses as much as digits as its factorization.

1442604769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 1442604769 is about 37981.6372606553. The cubic root of 1442604769 is about 1129.9237082698.

The spelling of 1442604769 in words is "one billion, four hundred forty-two million, six hundred four thousand, seven hundred sixty-nine".