219909234 has 16 divisors (see below), whose sum is σ = 440137440. Its totient is φ = 73249920.

The previous prime is 219909227. The next prime is 219909251. The reversal of 219909234 is 432909912.

219909234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 219909192 and 219909201.

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, 3807 + ... + 21314.

It is an arithmetic number, because the mean of its divisors is an integer number (27508590).

Almost surely, 2^219909234 is an apocalyptic number.

219909234 is an abundant number, since it is smaller than the sum of its proper divisors (220228206).

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

219909234 is a wasteful number, since it uses less digits than its factorization.

219909234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26585.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 219909234 is about 14829.3369373010. The cubic root of 219909234 is about 603.5980414775.

The spelling of 219909234 in words is "two hundred nineteen million, nine hundred nine thousand, two hundred thirty-four".