442403473 has 2 divisors, whose sum is σ = 442403474. Its totient is φ = 442403472.

The previous prime is 442403447. The next prime is 442403509. The reversal of 442403473 is 374304244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442387089 + 16384 = 21033^2 + 128^2 .

It is a cyclic number.

It is not a de Polignac number, because 442403473 - 2⁵ = 442403441 is a prime.

It is not a weakly prime, because it can be changed into another prime (442403173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221201736 + 221201737.

It is an arithmetic number, because the mean of its divisors is an integer number (221201737).

Almost surely, 2^442403473 is an apocalyptic number.

It is an amenable number.

442403473 is a deficient number, since it is larger than the sum of its proper divisors (1).

442403473 is an equidigital number, since it uses as much as digits as its factorization.

442403473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 31.

The square root of 442403473 is about 21033.3894795870. The cubic root of 442403473 is about 761.9728711095.

The spelling of 442403473 in words is "four hundred forty-two million, four hundred three thousand, four hundred seventy-three".