42252244 has 6 divisors (see below), whose sum is σ = 73941434. Its totient is φ = 21126120.

The previous prime is 42252227. The next prime is 42252269. The reversal of 42252244 is 44225224.

42252244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 23155344 + 19096900 = 4812^2 + 4370^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5281527 + ... + 5281534.

Almost surely, 2^42252244 is an apocalyptic number.

It is an amenable number.

42252244 is a deficient number, since it is larger than the sum of its proper divisors (31689190).

42252244 is a wasteful number, since it uses less digits than its factorization.

42252244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10563065 (or 10563063 counting only the distinct ones).

The product of its digits is 5120, while the sum is 25.

The square root of 42252244 is about 6500.1726130927. The cubic root of 42252244 is about 348.2971544781.

Adding to 42252244 its reverse (44225224), we get a palindrome (86477468).

The spelling of 42252244 in words is "forty-two million, two hundred fifty-two thousand, two hundred forty-four".