216339039 has 32 divisors (see below), whose sum is σ = 369213440. Its totient is φ = 122635296.

The previous prime is 216339023. The next prime is 216339041. The reversal of 216339039 is 930933612.

It is a happy number.

It is not a de Polignac number, because 216339039 - 2⁴ = 216339023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216338994 and 216339012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216339139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19497 + ... + 28509.

It is an arithmetic number, because the mean of its divisors is an integer number (11537920).

Almost surely, 2^216339039 is an apocalyptic number.

216339039 is a deficient number, since it is larger than the sum of its proper divisors (152874401).

216339039 is a wasteful number, since it uses less digits than its factorization.

216339039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9156 (or 9150 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 36.

The square root of 216339039 is about 14708.4682751128. The cubic root of 216339039 is about 600.3137608949.

The spelling of 216339039 in words is "two hundred sixteen million, three hundred thirty-nine thousand, thirty-nine".