42212286 has 32 divisors (see below), whose sum is σ = 94068000. Its totient is φ = 14031360.

The previous prime is 42212279. The next prime is 42212293. The reversal of 42212286 is 68221224.

It is a happy number.

42212286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42212279) and next prime (42212293).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23376 + ... + 25116.

It is an arithmetic number, because the mean of its divisors is an integer number (2939625).

Almost surely, 2^42212286 is an apocalyptic number.

42212286 is an abundant number, since it is smaller than the sum of its proper divisors (51855714).

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

42212286 is a wasteful number, since it uses less digits than its factorization.

42212286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2201 (or 2195 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 42212286 is about 6497.0982753842. The cubic root of 42212286 is about 348.1873248306.

The spelling of 42212286 in words is "forty-two million, two hundred twelve thousand, two hundred eighty-six".