442065963 has 18 divisors (see below), whose sum is σ = 602268732. Its totient is φ = 288422640.

The previous prime is 442065961. The next prime is 442065997. The reversal of 442065963 is 369560244.

It is not a de Polignac number, because 442065963 - 2¹ = 442065961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442065961) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2221338 + ... + 2221536.

It is an arithmetic number, because the mean of its divisors is an integer number (33459374).

Almost surely, 2^442065963 is an apocalyptic number.

442065963 is a deficient number, since it is larger than the sum of its proper divisors (160202769).

442065963 is an frugal number, since it uses more digits than its factorization.

442065963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 442065963 is about 21025.3647530786. The cubic root of 442065963 is about 761.7790518876.

The spelling of 442065963 in words is "four hundred forty-two million, sixty-five thousand, nine hundred sixty-three".