284020222 has 8 divisors (see below), whose sum is σ = 428744376. Its totient is φ = 141105432.

The previous prime is 284020211. The next prime is 284020259. The reversal of 284020222 is 222020482.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 284020193 and 284020202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451948 + ... + 452575.

It is an arithmetic number, because the mean of its divisors is an integer number (53593047).

Almost surely, 2^284020222 is an apocalyptic number.

284020222 is a deficient number, since it is larger than the sum of its proper divisors (144724154).

284020222 is a wasteful number, since it uses less digits than its factorization.

284020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904682.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 284020222 is about 16852.8995131402. The cubic root of 284020222 is about 657.3294459484.

The spelling of 284020222 in words is "two hundred eighty-four million, twenty thousand, two hundred twenty-two".