442749963 has 16 divisors (see below), whose sum is σ = 597194496. Its totient is φ = 291746400.

The previous prime is 442749959. The next prime is 442749997. The reversal of 442749963 is 369947244.

It is not a de Polignac number, because 442749963 - 2² = 442749959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442749943) 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, 286170 + ... + 287712.

It is an arithmetic number, because the mean of its divisors is an integer number (37324656).

Almost surely, 2^442749963 is an apocalyptic number.

442749963 is a deficient number, since it is larger than the sum of its proper divisors (154444533).

442749963 is a wasteful number, since it uses less digits than its factorization.

442749963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594.

The product of its digits is 1306368, while the sum is 48.

The square root of 442749963 is about 21041.6245332911. The cubic root of 442749963 is about 762.1717446872.

The spelling of 442749963 in words is "four hundred forty-two million, seven hundred forty-nine thousand, nine hundred sixty-three".