42224331 has 4 divisors (see below), whose sum is σ = 56299112. Its totient is φ = 28149552.

The previous prime is 42224317. The next prime is 42224333. The reversal of 42224331 is 13342224.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42224331 - 2¹⁴ = 42207947 is a prime.

It is a super-2 number, since 2×42224331² = 3565788256795122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42224298 and 42224307.

It is not an unprimeable number, because it can be changed into a prime (42224333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7037386 + ... + 7037391.

It is an arithmetic number, because the mean of its divisors is an integer number (14074778).

Almost surely, 2^42224331 is an apocalyptic number.

42224331 is a deficient number, since it is larger than the sum of its proper divisors (14074781).

42224331 is a wasteful number, since it uses less digits than its factorization.

42224331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14074780.

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

The square root of 42224331 is about 6498.0251615395. The cubic root of 42224331 is about 348.2204393405.

Adding to 42224331 its reverse (13342224), we get a palindrome (55566555).

It can be divided in two parts, 422 and 24331, that added together give a triangular number (24753 = T₂₂₂).

The spelling of 42224331 in words is "forty-two million, two hundred twenty-four thousand, three hundred thirty-one".