442535473 has 2 divisors, whose sum is σ = 442535474. Its totient is φ = 442535472.

The previous prime is 442535377. The next prime is 442535497. The reversal of 442535473 is 374535244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 368179344 + 74356129 = 19188^2 + 8623^2 .

It is a cyclic number.

It is not a de Polignac number, because 442535473 - 2¹⁷ = 442404401 is a prime.

It is not a weakly prime, because it can be changed into another prime (442535173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221267736 + 221267737.

It is an arithmetic number, because the mean of its divisors is an integer number (221267737).

Almost surely, 2^442535473 is an apocalyptic number.

It is an amenable number.

442535473 is a deficient number, since it is larger than the sum of its proper divisors (1).

442535473 is an equidigital number, since it uses as much as digits as its factorization.

442535473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 37.

The square root of 442535473 is about 21036.5271135708. The cubic root of 442535473 is about 762.0486468990.

The spelling of 442535473 in words is "four hundred forty-two million, five hundred thirty-five thousand, four hundred seventy-three".