216234448 has 10 divisors (see below), whose sum is σ = 418954274. Its totient is φ = 108117216.

The previous prime is 216234433. The next prime is 216234449. The reversal of 216234448 is 844432612.

It can be written as a sum of positive squares in only one way, i.e., 205291584 + 10942864 = 14328^2 + 3308^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216234449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6757311 + ... + 6757342.

Almost surely, 2^216234448 is an apocalyptic number.

It is an amenable number.

216234448 is a deficient number, since it is larger than the sum of its proper divisors (202719826).

216234448 is a wasteful number, since it uses less digits than its factorization.

216234448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13514661 (or 13514655 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

The square root of 216234448 is about 14704.9123764815. The cubic root of 216234448 is about 600.2170029882.

The spelling of 216234448 in words is "two hundred sixteen million, two hundred thirty-four thousand, four hundred forty-eight".