442373573 has 2 divisors, whose sum is σ = 442373574. Its totient is φ = 442373572.

The previous prime is 442373549. The next prime is 442373587. The reversal of 442373573 is 375373244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 441966529 + 407044 = 21023^2 + 638^2 .

It is a cyclic number.

It is not a de Polignac number, because 442373573 - 2¹⁴ = 442357189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442373543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221186786 + 221186787.

It is an arithmetic number, because the mean of its divisors is an integer number (221186787).

Almost surely, 2^442373573 is an apocalyptic number.

It is an amenable number.

442373573 is a deficient number, since it is larger than the sum of its proper divisors (1).

442373573 is an equidigital number, since it uses as much as digits as its factorization.

442373573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 38.

The square root of 442373573 is about 21032.6786929292. The cubic root of 442373573 is about 761.9557046514.

The spelling of 442373573 in words is "four hundred forty-two million, three hundred seventy-three thousand, five hundred seventy-three".