219433868 has 6 divisors (see below), whose sum is σ = 384009276. Its totient is φ = 109716932.

The previous prime is 219433867. The next prime is 219433871. The reversal of 219433868 is 868334912.

It is not an unprimeable number, because it can be changed into a prime (219433867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27429230 + ... + 27429237.

It is an arithmetic number, because the mean of its divisors is an integer number (64001546).

Almost surely, 2^219433868 is an apocalyptic number.

It is an amenable number.

219433868 is a deficient number, since it is larger than the sum of its proper divisors (164575408).

219433868 is a wasteful number, since it uses less digits than its factorization.

219433868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54858471 (or 54858469 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 219433868 is about 14813.3003750008. The cubic root of 219433868 is about 603.1628058774.

The spelling of 219433868 in words is "two hundred nineteen million, four hundred thirty-three thousand, eight hundred sixty-eight".