216234352 has 20 divisors (see below), whose sum is σ = 419468440. Its totient is φ = 107984448.

The previous prime is 216234349. The next prime is 216234379. The reversal of 216234352 is 253432612.

It is a self number, because there is not a number n which added to its sum of digits gives 216234352.

It is a congruent number.

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, 5878 + ... + 21610.

It is an arithmetic number, because the mean of its divisors is an integer number (20973422).

Almost surely, 2^216234352 is an apocalyptic number.

It is an amenable number.

216234352 is a deficient number, since it is larger than the sum of its proper divisors (203234088).

216234352 is a wasteful number, since it uses less digits than its factorization.

216234352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16600 (or 16594 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 216234352 is about 14704.9091122659. The cubic root of 216234352 is about 600.2169141636.

Adding to 216234352 its reverse (253432612), we get a palindrome (469666964).

The spelling of 216234352 in words is "two hundred sixteen million, two hundred thirty-four thousand, three hundred fifty-two".