42229444 has 12 divisors (see below), whose sum is σ = 74065068. Its totient is φ = 21068000.

The previous prime is 42229441. The next prime is 42229459. The reversal of 42229444 is 44492224.

It can be written as a sum of positive squares in 2 ways, for example, as 30669444 + 11560000 = 5538^2 + 3400^2 .

It is not an unprimeable number, because it can be changed into a prime (42229441) 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, 9607 + ... + 13294.

It is an arithmetic number, because the mean of its divisors is an integer number (6172089).

Almost surely, 2^42229444 is an apocalyptic number.

It is an amenable number.

42229444 is a deficient number, since it is larger than the sum of its proper divisors (31835624).

42229444 is a wasteful number, since it uses less digits than its factorization.

42229444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23366 (or 23364 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

The square root of 42229444 is about 6498.4185768539. The cubic root of 42229444 is about 348.2344942641.

The spelling of 42229444 in words is "forty-two million, two hundred twenty-nine thousand, four hundred forty-four".