442734865 has 16 divisors (see below), whose sum is σ = 565992000. Its totient is φ = 331497792.

The previous prime is 442734857. The next prime is 442734899. The reversal of 442734865 is 568437244.

It is a cyclic number.

It is not a de Polignac number, because 442734865 - 2³ = 442734857 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 20190 + ... + 35959.

It is an arithmetic number, because the mean of its divisors is an integer number (35374500).

Almost surely, 2^442734865 is an apocalyptic number.

It is an amenable number.

442734865 is a deficient number, since it is larger than the sum of its proper divisors (123257135).

442734865 is a wasteful number, since it uses less digits than its factorization.

442734865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56256.

The product of its digits is 645120, while the sum is 43.

The square root of 442734865 is about 21041.2657651578. The cubic root of 442734865 is about 762.1630811068.

The spelling of 442734865 in words is "four hundred forty-two million, seven hundred thirty-four thousand, eight hundred sixty-five".