42224133 has 12 divisors (see below), whose sum is σ = 65490720. Its totient is φ = 24127992.

The previous prime is 42224111. The next prime is 42224167. The reversal of 42224133 is 33142224.

It is not a de Polignac number, because 42224133 - 2⁵ = 42224101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42224183) 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, 143473 + ... + 143766.

It is an arithmetic number, because the mean of its divisors is an integer number (5457560).

Almost surely, 2^42224133 is an apocalyptic number.

It is an amenable number.

42224133 is a deficient number, since it is larger than the sum of its proper divisors (23266587).

42224133 is a wasteful number, since it uses less digits than its factorization.

42224133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287256 (or 287249 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 42224133 is about 6498.0099261235. The cubic root of 42224133 is about 348.2198950433.

Adding to 42224133 its reverse (33142224), we get a palindrome (75366357).

The spelling of 42224133 in words is "forty-two million, two hundred twenty-four thousand, one hundred thirty-three".