42855933 has 4 divisors (see below), whose sum is σ = 57141248. Its totient is φ = 28570620.

The previous prime is 42855899. The next prime is 42855937. The reversal of 42855933 is 33955824.

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 not a de Polignac number, because 42855933 - 2⁸ = 42855677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42855891 and 42855900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42855937) 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, 7142653 + ... + 7142658.

It is an arithmetic number, because the mean of its divisors is an integer number (14285312).

Almost surely, 2^42855933 is an apocalyptic number.

It is an amenable number.

42855933 is a deficient number, since it is larger than the sum of its proper divisors (14285315).

42855933 is a wasteful number, since it uses less digits than its factorization.

42855933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14285314.

The product of its digits is 129600, while the sum is 39.

The square root of 42855933 is about 6546.4443020620. Note that the first 3 decimals coincide. The cubic root of 42855933 is about 349.9481093139.

The spelling of 42855933 in words is "forty-two million, eight hundred fifty-five thousand, nine hundred thirty-three".