42222286 has 4 divisors (see below), whose sum is σ = 63333432. Its totient is φ = 21111142.

The previous prime is 42222281. The next prime is 42222287. The reversal of 42222286 is 68222224.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42222281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555570 + ... + 10555573.

It is an arithmetic number, because the mean of its divisors is an integer number (15833358).

Almost surely, 2^42222286 is an apocalyptic number.

42222286 is a deficient number, since it is larger than the sum of its proper divisors (21111146).

42222286 is a wasteful number, since it uses less digits than its factorization.

42222286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21111145.

The product of its digits is 6144, while the sum is 28.

The square root of 42222286 is about 6497.8678041339. The cubic root of 42222286 is about 348.2148176031.

The spelling of 42222286 in words is "forty-two million, two hundred twenty-two thousand, two hundred eighty-six".