219556968 has 64 divisors (see below), whose sum is σ = 575467200. Its totient is φ = 69726720.

The previous prime is 219556957. The next prime is 219556991. The reversal of 219556968 is 869655912.

It is a self number, because there is not a number n which added to its sum of digits gives 219556968.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39718 + ... + 44906.

It is an arithmetic number, because the mean of its divisors is an integer number (8991675).

Almost surely, 2^219556968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 219556968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287733600).

219556968 is an abundant number, since it is smaller than the sum of its proper divisors (355910232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

219556968 is a wasteful number, since it uses less digits than its factorization.

219556968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5282 (or 5278 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 51.

The square root of 219556968 is about 14817.4548421785. The cubic root of 219556968 is about 603.2755740385.

The spelling of 219556968 in words is "two hundred nineteen million, five hundred fifty-six thousand, nine hundred sixty-eight".