42222244 has 6 divisors (see below), whose sum is σ = 73888934. Its totient is φ = 21111120.

The previous prime is 42222239. The next prime is 42222253. The reversal of 42222244 is 44222224.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 41447844 + 774400 = 6438^2 + 880^2 .

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5277777 + ... + 5277784.

Almost surely, 2^42222244 is an apocalyptic number.

It is an amenable number.

42222244 is a deficient number, since it is larger than the sum of its proper divisors (31666690).

42222244 is a wasteful number, since it uses less digits than its factorization.

42222244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10555565 (or 10555563 counting only the distinct ones).

The product of its digits is 2048, while the sum is 22.

The square root of 42222244 is about 6497.8645723037. The cubic root of 42222244 is about 348.2147021426.

Adding to 42222244 its reverse (44222224), we get a palindrome (86444468).

The spelling of 42222244 in words is "forty-two million, two hundred twenty-two thousand, two hundred forty-four".