442546546 has 16 divisors (see below), whose sum is σ = 715365504. Its totient is φ = 204114384.

The previous prime is 442546477. The next prime is 442546553. The reversal of 442546546 is 645645244.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 442546499 and 442546508.

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, 40551 + ... + 50293.

It is an arithmetic number, because the mean of its divisors is an integer number (44710344).

Almost surely, 2^442546546 is an apocalyptic number.

442546546 is a deficient number, since it is larger than the sum of its proper divisors (272818958).

442546546 is a wasteful number, since it uses less digits than its factorization.

442546546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11505.

The product of its digits is 460800, while the sum is 40.

The square root of 442546546 is about 21036.7902970011. The cubic root of 442546546 is about 762.0550027693.

The spelling of 442546546 in words is "four hundred forty-two million, five hundred forty-six thousand, five hundred forty-six".