442838265 has 16 divisors (see below), whose sum is σ = 732974400. Its totient is φ = 228036032.

The previous prime is 442838261. The next prime is 442838273. The reversal of 442838265 is 562838244.

It is a cyclic number.

It is not a de Polignac number, because 442838265 - 2² = 442838261 is a prime.

It is a super-2 number, since 2×442838265² = 392211457896420450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (442838261) 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, 508575 + ... + 509444.

It is an arithmetic number, because the mean of its divisors is an integer number (45810900).

Almost surely, 2^442838265 is an apocalyptic number.

It is an amenable number.

442838265 is a deficient number, since it is larger than the sum of its proper divisors (290136135).

442838265 is a wasteful number, since it uses less digits than its factorization.

442838265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018056.

The product of its digits is 368640, while the sum is 42.

The square root of 442838265 is about 21043.7226982300. The cubic root of 442838265 is about 762.2224104665. Note that the first 3 decimals are identical.

The spelling of 442838265 in words is "four hundred forty-two million, eight hundred thirty-eight thousand, two hundred sixty-five".