219795028 has 12 divisors (see below), whose sum is σ = 391899060. Its totient is φ = 107823872.

The previous prime is 219795019. The next prime is 219795049. The reversal of 219795028 is 820597912.

219795028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 108534724 + 111260304 = 10418^2 + 10548^2 .

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, 518173 + ... + 518596.

It is an arithmetic number, because the mean of its divisors is an integer number (32658255).

Almost surely, 2^219795028 is an apocalyptic number.

It is an amenable number.

219795028 is a deficient number, since it is larger than the sum of its proper divisors (172104032).

219795028 is a wasteful number, since it uses less digits than its factorization.

219795028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036826 (or 1036824 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 219795028 is about 14825.4857593267. The cubic root of 219795028 is about 603.4935340353.

The spelling of 219795028 in words is "two hundred nineteen million, seven hundred ninety-five thousand, twenty-eight".