428219422 has 4 divisors (see below), whose sum is σ = 642329136. Its totient is φ = 214109710.

The previous prime is 428219417. The next prime is 428219431. The reversal of 428219422 is 224912824.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 107054854 + ... + 107054857.

It is an arithmetic number, because the mean of its divisors is an integer number (160582284).

Almost surely, 2^428219422 is an apocalyptic number.

428219422 is a deficient number, since it is larger than the sum of its proper divisors (214109714).

428219422 is a wasteful number, since it uses less digits than its factorization.

428219422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214109713.

The product of its digits is 18432, while the sum is 34.

The square root of 428219422 is about 20693.4632674185. The cubic root of 428219422 is about 753.7409666812.

The spelling of 428219422 in words is "four hundred twenty-eight million, two hundred nineteen thousand, four hundred twenty-two".