216339998 has 24 divisors (see below), whose sum is σ = 382053672. Its totient is φ = 91596624.

The previous prime is 216339967. The next prime is 216340021. The reversal of 216339998 is 899933612.

216339998 is digitally balanced in base 2, because in such base 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 11 ways as a sum of consecutive naturals, for example, 5165 + ... + 21432.

It is an arithmetic number, because the mean of its divisors is an integer number (15918903).

Almost surely, 2^216339998 is an apocalyptic number.

216339998 is a deficient number, since it is larger than the sum of its proper divisors (165713674).

216339998 is a wasteful number, since it uses less digits than its factorization.

216339998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26696 (or 26689 counting only the distinct ones).

The product of its digits is 629856, while the sum is 50.

The square root of 216339998 is about 14708.5008753442. The cubic root of 216339998 is about 600.3146479286.

The spelling of 216339998 in words is "two hundred sixteen million, three hundred thirty-nine thousand, nine hundred ninety-eight".