219055734 has 48 divisors (see below), whose sum is σ = 506862720. Its totient is φ = 68221440.

The previous prime is 219055723. The next prime is 219055747. The reversal of 219055734 is 437550912.

219055734 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9414 + ... + 22950.

It is an arithmetic number, because the mean of its divisors is an integer number (10559640).

Almost surely, 2^219055734 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 219055734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253431360).

219055734 is an abundant number, since it is smaller than the sum of its proper divisors (287806986).

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

219055734 is a wasteful number, since it uses less digits than its factorization.

219055734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13605 (or 13602 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 219055734 is about 14800.5315445088. The cubic root of 219055734 is about 602.8161448673.

The spelling of 219055734 in words is "two hundred nineteen million, fifty-five thousand, seven hundred thirty-four".