219994328 has 16 divisors (see below), whose sum is σ = 415260000. Its totient is φ = 109258336.

The previous prime is 219994283. The next prime is 219994337. The reversal of 219994328 is 823499912.

219994328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91088 + ... + 93471.

It is an arithmetic number, because the mean of its divisors is an integer number (25953750).

Almost surely, 2^219994328 is an apocalyptic number.

It is an amenable number.

219994328 is a deficient number, since it is larger than the sum of its proper divisors (195265672).

219994328 is a wasteful number, since it uses less digits than its factorization.

219994328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184714 (or 184710 counting only the distinct ones).

The product of its digits is 279936, while the sum is 47.

The square root of 219994328 is about 14832.2057698779. The cubic root of 219994328 is about 603.6758856366.

The spelling of 219994328 in words is "two hundred nineteen million, nine hundred ninety-four thousand, three hundred twenty-eight".