42255222 has 16 divisors (see below), whose sum is σ = 84575232. Its totient is φ = 14074280.

The previous prime is 42255181. The next prime is 42255223. The reversal of 42255222 is 22255224.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42255192 and 42255201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42255223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11647 + ... + 14837.

It is an arithmetic number, because the mean of its divisors is an integer number (5285952).

Almost surely, 2^42255222 is an apocalyptic number.

42255222 is an abundant number, since it is smaller than the sum of its proper divisors (42320010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42255222 is a wasteful number, since it uses less digits than its factorization.

42255222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5403.

The product of its digits is 3200, while the sum is 24.

The square root of 42255222 is about 6500.4016798964. The cubic root of 42255222 is about 348.3053371169.

The spelling of 42255222 in words is "forty-two million, two hundred fifty-five thousand, two hundred twenty-two".