42224345 has 12 divisors (see below), whose sum is σ = 53826924. Its totient is φ = 31791360.

The previous prime is 42224333. The next prime is 42224393. The reversal of 42224345 is 54342224.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 337561 + 41886784 = 581^2 + 6472^2 .

It is not a de Polignac number, because 42224345 - 2¹⁸ = 41962201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13166 + ... + 16055.

It is an arithmetic number, because the mean of its divisors is an integer number (4485577).

Almost surely, 2^42224345 is an apocalyptic number.

It is an amenable number.

42224345 is a deficient number, since it is larger than the sum of its proper divisors (11602579).

42224345 is a wasteful number, since it uses less digits than its factorization.

42224345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29260 (or 29243 counting only the distinct ones).

The product of its digits is 7680, while the sum is 26.

The square root of 42224345 is about 6498.0262387897. The cubic root of 42224345 is about 348.2204778261.

Adding to 42224345 its reverse (54342224), we get a palindrome (96566569).

The spelling of 42224345 in words is "forty-two million, two hundred twenty-four thousand, three hundred forty-five".