442003273 has 2 divisors, whose sum is σ = 442003274. Its totient is φ = 442003272.

The previous prime is 442003253. The next prime is 442003357. The reversal of 442003273 is 372300244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 389193984 + 52809289 = 19728^2 + 7267^2 .

It is a cyclic number.

It is not a de Polignac number, because 442003273 - 2⁵ = 442003241 is a prime.

It is not a weakly prime, because it can be changed into another prime (442003253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221001636 + 221001637.

It is an arithmetic number, because the mean of its divisors is an integer number (221001637).

Almost surely, 2^442003273 is an apocalyptic number.

It is an amenable number.

442003273 is a deficient number, since it is larger than the sum of its proper divisors (1).

442003273 is an equidigital number, since it uses as much as digits as its factorization.

442003273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 442003273 is about 21023.8738818516. The cubic root of 442003273 is about 761.7430405300.

The spelling of 442003273 in words is "four hundred forty-two million, three thousand, two hundred seventy-three".