219042422 has 4 divisors (see below), whose sum is σ = 328563636. Its totient is φ = 109521210.

The previous prime is 219042403. The next prime is 219042449. The reversal of 219042422 is 224240912.

It is a happy number.

219042422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 219042391 and 219042400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54760604 + ... + 54760607.

It is an arithmetic number, because the mean of its divisors is an integer number (82140909).

Almost surely, 2^219042422 is an apocalyptic number.

219042422 is a deficient number, since it is larger than the sum of its proper divisors (109521214).

219042422 is a wasteful number, since it uses less digits than its factorization.

219042422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109521213.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 219042422 is about 14800.0818240981. The cubic root of 219042422 is about 602.8039335897.

The spelling of 219042422 in words is "two hundred nineteen million, forty-two thousand, four hundred twenty-two".