219467934 has 64 divisors (see below), whose sum is σ = 561523200. Its totient is φ = 62239104.

The previous prime is 219467933. The next prime is 219467951. The reversal of 219467934 is 439764912.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 219467934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219467933) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 50454 + ... + 54630.

It is an arithmetic number, because the mean of its divisors is an integer number (8773800).

Almost surely, 2^219467934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 219467934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280761600).

219467934 is an abundant number, since it is smaller than the sum of its proper divisors (342055266).

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

219467934 is a wasteful number, since it uses less digits than its factorization.

219467934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4334 (or 4328 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 219467934 is about 14814.4501754199. The cubic root of 219467934 is about 603.1940169223.

The spelling of 219467934 in words is "two hundred nineteen million, four hundred sixty-seven thousand, nine hundred thirty-four".