442264869 has 12 divisors (see below), whose sum is σ = 639047500. Its totient is φ = 294741504.

The previous prime is 442264859. The next prime is 442264871. The reversal of 442264869 is 968462244.

It can be written as a sum of positive squares in 2 ways, for example, as 115992900 + 326271969 = 10770^2 + 18063^2 .

It is not a de Polignac number, because 442264869 - 2⁴ = 442264853 is a prime.

It is a super-2 number, since 2×442264869² = 391196428703174322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442264829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26757 + ... + 40005.

Almost surely, 2^442264869 is an apocalyptic number.

It is an amenable number.

442264869 is a deficient number, since it is larger than the sum of its proper divisors (196782631).

442264869 is a wasteful number, since it uses less digits than its factorization.

442264869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16964 (or 16961 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 442264869 is about 21030.0943649809. The cubic root of 442264869 is about 761.8932880098.

The spelling of 442264869 in words is "four hundred forty-two million, two hundred sixty-four thousand, eight hundred sixty-nine".