442085464 has 32 divisors (see below), whose sum is σ = 873586800. Its totient is φ = 209157120.

The previous prime is 442085417. The next prime is 442085477. The reversal of 442085464 is 464580244.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205804 + ... + 207940.

Almost surely, 2^442085464 is an apocalyptic number.

It is an amenable number.

442085464 is a deficient number, since it is larger than the sum of its proper divisors (431501336).

442085464 is a wasteful number, since it uses less digits than its factorization.

442085464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3523 (or 3519 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 37.

The square root of 442085464 is about 21025.8284973506. The cubic root of 442085464 is about 761.7902532588.

The spelling of 442085464 in words is "four hundred forty-two million, eighty-five thousand, four hundred sixty-four".