442435217 has 16 divisors (see below), whose sum is σ = 538503552. Its totient is φ = 354842880.

The previous prime is 442435207. The next prime is 442435219. The reversal of 442435217 is 712534244.

It is not a de Polignac number, because 442435217 - 2⁸ = 442434961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442435219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9842 + ... + 31332.

It is an arithmetic number, because the mean of its divisors is an integer number (33656472).

Almost surely, 2^442435217 is an apocalyptic number.

It is an amenable number.

442435217 is a deficient number, since it is larger than the sum of its proper divisors (96068335).

442435217 is a wasteful number, since it uses less digits than its factorization.

442435217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21688.

The product of its digits is 26880, while the sum is 32.

The square root of 442435217 is about 21034.1440757641. The cubic root of 442435217 is about 761.9910954152.

The spelling of 442435217 in words is "four hundred forty-two million, four hundred thirty-five thousand, two hundred seventeen".