442066775 has 6 divisors (see below), whose sum is σ = 548162832. Its totient is φ = 353653400.

The previous prime is 442066753. The next prime is 442066829. The reversal of 442066775 is 577660244.

It is a de Polignac number, because none of the positive numbers 2^k-442066775 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8841311 + ... + 8841360.

It is an arithmetic number, because the mean of its divisors is an integer number (91360472).

Almost surely, 2^442066775 is an apocalyptic number.

442066775 is a deficient number, since it is larger than the sum of its proper divisors (106096057).

442066775 is a wasteful number, since it uses less digits than its factorization.

442066775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17682681 (or 17682676 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 41.

The square root of 442066775 is about 21025.3840630796. The cubic root of 442066775 is about 761.7795183068.

The spelling of 442066775 in words is "four hundred forty-two million, sixty-six thousand, seven hundred seventy-five".