442006466 has 16 divisors (see below), whose sum is σ = 729265248. Its totient is φ = 200910820.

The previous prime is 442006451. The next prime is 442006483. The reversal of 442006466 is 664600244.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80360 + ... + 85683.

It is an arithmetic number, because the mean of its divisors is an integer number (45579078).

Almost surely, 2^442006466 is an apocalyptic number.

442006466 is a deficient number, since it is larger than the sum of its proper divisors (287258782).

442006466 is a wasteful number, since it uses less digits than its factorization.

442006466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166078 (or 166056 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 442006466 is about 21023.9498191943. The cubic root of 442006466 is about 761.7448747847.

The spelling of 442006466 in words is "four hundred forty-two million, six thousand, four hundred sixty-six".