42712222 has 12 divisors (see below), whose sum is σ = 74528640. Its totient is φ = 18305196.

The previous prime is 42712217. The next prime is 42712231. The reversal of 42712222 is 22221724.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42712193 and 42712202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 217822 + ... + 218017.

It is an arithmetic number, because the mean of its divisors is an integer number (6210720).

Almost surely, 2^42712222 is an apocalyptic number.

42712222 is a deficient number, since it is larger than the sum of its proper divisors (31816418).

42712222 is a wasteful number, since it uses less digits than its factorization.

42712222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435855 (or 435848 counting only the distinct ones).

The product of its digits is 896, while the sum is 22.

The square root of 42712222 is about 6535.4588209245. The cubic root of 42712222 is about 349.5565049387.

Adding to 42712222 its reverse (22221724), we get a palindrome (64933946).

The spelling of 42712222 in words is "forty-two million, seven hundred twelve thousand, two hundred twenty-two".