219234864 has 20 divisors (see below), whose sum is σ = 566356856. Its totient is φ = 73078272.

The previous prime is 219234859. The next prime is 219234877. The reversal of 219234864 is 468432912.

219234864 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2283649 + ... + 2283744.

Almost surely, 2^219234864 is an apocalyptic number.

219234864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

219234864 is an abundant number, since it is smaller than the sum of its proper divisors (347121992).

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

219234864 is a wasteful number, since it uses less digits than its factorization.

219234864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4567404 (or 4567398 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 219234864 is about 14806.5817797357. The cubic root of 219234864 is about 602.9804151402.

The spelling of 219234864 in words is "two hundred nineteen million, two hundred thirty-four thousand, eight hundred sixty-four".