219808912 has 40 divisors (see below), whose sum is σ = 453399552. Its totient is φ = 102873600.

The previous prime is 219808903. The next prime is 219808931.

219808912 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49837 + ... + 54067.

Almost surely, 2^219808912 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 219808912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226699776).

219808912 is an abundant number, since it is smaller than the sum of its proper divisors (233590640).

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

219808912 is a wasteful number, since it uses less digits than its factorization.

219808912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4447 (or 4441 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 219808912 is about 14825.9539996588. The cubic root of 219808912 is about 603.5062409163.

The spelling of 219808912 in words is "two hundred nineteen million, eight hundred eight thousand, nine hundred twelve".