42222237 has 16 divisors (see below), whose sum is σ = 62746560. Its totient is φ = 25097472.

The previous prime is 42222233. The next prime is 42222239. The reversal of 42222237 is 73222224.

It is a happy number.

It is not a de Polignac number, because 42222237 - 2² = 42222233 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42222233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20818 + ... + 22755.

It is an arithmetic number, because the mean of its divisors is an integer number (3921660).

Almost surely, 2^42222237 is an apocalyptic number.

It is an amenable number.

42222237 is a deficient number, since it is larger than the sum of its proper divisors (20524323).

42222237 is a wasteful number, since it uses less digits than its factorization.

42222237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43612.

The product of its digits is 2688, while the sum is 24.

The square root of 42222237 is about 6497.8640336652. The cubic root of 42222237 is about 348.2146828991.

The spelling of 42222237 in words is "forty-two million, two hundred twenty-two thousand, two hundred thirty-seven".