442563219 has 48 divisors (see below), whose sum is σ = 772046080. Its totient is φ = 238645440.

The previous prime is 442563203. The next prime is 442563239. The reversal of 442563219 is 912365244.

It is a happy number.

442563219 is a `hidden beast` number, since 4 + 4 + 2 + 5 + 632 + 19 = 666.

It is not a de Polignac number, because 442563219 - 2⁴ = 442563203 is a prime.

It is a super-2 number, since 2×442563219² = 391724405623283922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442563239) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 395649 + ... + 396765.

Almost surely, 2^442563219 is an apocalyptic number.

442563219 is a deficient number, since it is larger than the sum of its proper divisors (329482861).

442563219 is a wasteful number, since it uses less digits than its factorization.

442563219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480 (or 1477 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 442563219 is about 21037.1865752053. The cubic root of 442563219 is about 762.0645728237.

The spelling of 442563219 in words is "four hundred forty-two million, five hundred sixty-three thousand, two hundred nineteen".