219819234 has 32 divisors (see below), whose sum is σ = 466291584. Its totient is φ = 68935680.

The previous prime is 219819209. The next prime is 219819269. The reversal of 219819234 is 432918912.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 219819192 and 219819201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4639 + ... + 21474.

It is an arithmetic number, because the mean of its divisors is an integer number (14571612).

Almost surely, 2^219819234 is an apocalyptic number.

219819234 is an abundant number, since it is smaller than the sum of its proper divisors (246472350).

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

219819234 is a wasteful number, since it uses less digits than its factorization.

219819234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26202.

The product of its digits is 31104, while the sum is 39.

The square root of 219819234 is about 14826.3021013333. The cubic root of 219819234 is about 603.5156874455.

The spelling of 219819234 in words is "two hundred nineteen million, eight hundred nineteen thousand, two hundred thirty-four".