442703449 has 2 divisors, whose sum is σ = 442703450. Its totient is φ = 442703448.

The previous prime is 442703423. The next prime is 442703501. The reversal of 442703449 is 944307244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 379977049 + 62726400 = 19493^2 + 7920^2 .

It is a cyclic number.

It is not a de Polignac number, because 442703449 - 2⁷ = 442703321 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (442706449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221351724 + 221351725.

It is an arithmetic number, because the mean of its divisors is an integer number (221351725).

Almost surely, 2^442703449 is an apocalyptic number.

It is an amenable number.

442703449 is a deficient number, since it is larger than the sum of its proper divisors (1).

442703449 is an equidigital number, since it uses as much as digits as its factorization.

442703449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 442703449 is about 21040.5192188786. The cubic root of 442703449 is about 762.1450532504.

It can be divided in two parts, 442 and 703449, that added together give a triangular number (703891 = T₁₁₈₆).

The spelling of 442703449 in words is "four hundred forty-two million, seven hundred three thousand, four hundred forty-nine".