1442642633 has 2 divisors, whose sum is σ = 1442642634. Its totient is φ = 1442642632.

The previous prime is 1442642611. The next prime is 1442642651. The reversal of 1442642633 is 3362462441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1417371904 + 25270729 = 37648^2 + 5027^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442642633 - 2⁶ = 1442642569 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1442642593 and 1442642602.

It is not a weakly prime, because it can be changed into another prime (1442642683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721321316 + 721321317.

It is an arithmetic number, because the mean of its divisors is an integer number (721321317).

Almost surely, 2^1442642633 is an apocalyptic number.

It is an amenable number.

1442642633 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442642633 is an equidigital number, since it uses as much as digits as its factorization.

1442642633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 35.

The square root of 1442642633 is about 37982.1357087776. The cubic root of 1442642633 is about 1129.9335938735.

The spelling of 1442642633 in words is "one billion, four hundred forty-two million, six hundred forty-two thousand, six hundred thirty-three".