42906222 has 12 divisors (see below), whose sum is σ = 92963520. Its totient is φ = 14302068.

The previous prime is 42906221. The next prime is 42906233. The reversal of 42906222 is 22260924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42906221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1191822 + ... + 1191857.

It is an arithmetic number, because the mean of its divisors is an integer number (7746960).

Almost surely, 2^42906222 is an apocalyptic number.

42906222 is an abundant number, since it is smaller than the sum of its proper divisors (50057298).

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

42906222 is a wasteful number, since it uses less digits than its factorization.

42906222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383687 (or 2383684 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 42906222 is about 6550.2841159754. The cubic root of 42906222 is about 350.0849372091.

The spelling of 42906222 in words is "forty-two million, nine hundred six thousand, two hundred twenty-two".