42768222 has 16 divisors (see below), whose sum is σ = 97756032. Its totient is φ = 12219480.

The previous prime is 42768217. The next prime is 42768239. The reversal of 42768222 is 22286724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509104 + ... + 509187.

It is an arithmetic number, because the mean of its divisors is an integer number (6109752).

Almost surely, 2^42768222 is an apocalyptic number.

42768222 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

42768222 is an abundant number, since it is smaller than the sum of its proper divisors (54987810).

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

42768222 is a wasteful number, since it uses less digits than its factorization.

42768222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018303.

The product of its digits is 21504, while the sum is 33.

The square root of 42768222 is about 6539.7417380199. The cubic root of 42768222 is about 349.7092060828.

The spelling of 42768222 in words is "forty-two million, seven hundred sixty-eight thousand, two hundred twenty-two".