428142222 has 12 divisors (see below), whose sum is σ = 927641520. Its totient is φ = 142714068.

The previous prime is 428142199. The next prime is 428142227. The reversal of 428142222 is 222241824.

428142222 is a `hidden beast` number, since 428 + 14 + 2 + 222 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428142227) 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, 11892822 + ... + 11892857.

It is an arithmetic number, because the mean of its divisors is an integer number (77303460).

Almost surely, 2^428142222 is an apocalyptic number.

428142222 is an abundant number, since it is smaller than the sum of its proper divisors (499499298).

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

428142222 is a wasteful number, since it uses less digits than its factorization.

428142222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23785687 (or 23785684 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

The square root of 428142222 is about 20691.5978600010. The cubic root of 428142222 is about 753.6956687982.

The spelling of 428142222 in words is "four hundred twenty-eight million, one hundred forty-two thousand, two hundred twenty-two".