219828656 has 20 divisors (see below), whose sum is σ = 426751704. Its totient is φ = 109699200.

The previous prime is 219828643. The next prime is 219828659. The reversal of 219828656 is 656828912.

It is a self number, because there is not a number n which added to its sum of digits gives 219828656.

It is not an unprimeable number, because it can be changed into a prime (219828659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4850 + ... + 21521.

Almost surely, 2^219828656 is an apocalyptic number.

It is an amenable number.

219828656 is a deficient number, since it is larger than the sum of its proper divisors (206923048).

219828656 is a wasteful number, since it uses less digits than its factorization.

219828656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26900 (or 26894 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The square root of 219828656 is about 14826.6198440508. The cubic root of 219828656 is about 603.5243100509.

The spelling of 219828656 in words is "two hundred nineteen million, eight hundred twenty-eight thousand, six hundred fifty-six".