42805824 has 28 divisors (see below), whose sum is σ = 113257584. Its totient is φ = 14268544.

The previous prime is 42805817. The next prime is 42805837. The reversal of 42805824 is 42850824.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111282 + ... + 111665.

Almost surely, 2^42805824 is an apocalyptic number.

It is an amenable number.

42805824 is an abundant number, since it is smaller than the sum of its proper divisors (70451760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42805824 is a wasteful number, since it uses less digits than its factorization.

42805824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222962 (or 222952 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 42805824 is about 6542.6159905652. The cubic root of 42805824 is about 349.8116646611.

The spelling of 42805824 in words is "forty-two million, eight hundred five thousand, eight hundred twenty-four".