442161775 has 48 divisors (see below), whose sum is σ = 636387840. Its totient is φ = 301558400.

The previous prime is 442161767. The next prime is 442161781. The reversal of 442161775 is 577161244.

It is not a de Polignac number, because 442161775 - 2³ = 442161767 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 334566 + ... + 335884.

It is an arithmetic number, because the mean of its divisors is an integer number (13258080).

Almost surely, 2^442161775 is an apocalyptic number.

442161775 is a deficient number, since it is larger than the sum of its proper divisors (194226065).

442161775 is a wasteful number, since it uses less digits than its factorization.

442161775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416 (or 1411 counting only the distinct ones).

The product of its digits is 47040, while the sum is 37.

The square root of 442161775 is about 21027.6431156704. The cubic root of 442161775 is about 761.8340831184.

The spelling of 442161775 in words is "four hundred forty-two million, one hundred sixty-one thousand, seven hundred seventy-five".