1426444573 has 2 divisors, whose sum is σ = 1426444574. Its totient is φ = 1426444572.

The previous prime is 1426444561. The next prime is 1426444651. The reversal of 1426444573 is 3754446241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 936176409 + 490268164 = 30597^2 + 22142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1426444573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1426444553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713222286 + 713222287.

It is an arithmetic number, because the mean of its divisors is an integer number (713222287).

Almost surely, 2^1426444573 is an apocalyptic number.

It is an amenable number.

1426444573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1426444573 is an equidigital number, since it uses as much as digits as its factorization.

1426444573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 40.

The square root of 1426444573 is about 37768.3011664544. The cubic root of 1426444573 is about 1125.6886839729.

The spelling of 1426444573 in words is "one billion, four hundred twenty-six million, four hundred forty-four thousand, five hundred seventy-three".