42865441 has 4 divisors (see below), whose sum is σ = 43003584. Its totient is φ = 42727300.

The previous prime is 42865439. The next prime is 42865507. The reversal of 42865441 is 14456824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42865441 - 2¹ = 42865439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42865397 and 42865406.

It is not an unprimeable number, because it can be changed into a prime (42865411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68605 + ... + 69226.

It is an arithmetic number, because the mean of its divisors is an integer number (10750896).

Almost surely, 2^42865441 is an apocalyptic number.

It is an amenable number.

42865441 is a deficient number, since it is larger than the sum of its proper divisors (138143).

42865441 is a wasteful number, since it uses less digits than its factorization.

42865441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138142.

The product of its digits is 30720, while the sum is 34.

The square root of 42865441 is about 6547.1704575335. The cubic root of 42865441 is about 349.9739871824.

The spelling of 42865441 in words is "forty-two million, eight hundred sixty-five thousand, four hundred forty-one".