216236244 has 48 divisors (see below), whose sum is σ = 578745216. Its totient is φ = 61555200.

The previous prime is 216236231. The next prime is 216236261. The reversal of 216236244 is 442632612.

216236244 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×216236244² = 93516226438455072, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19024 + ... + 28184.

It is an arithmetic number, because the mean of its divisors is an integer number (12057192).

Almost surely, 2^216236244 is an apocalyptic number.

It is an amenable number.

216236244 is an abundant number, since it is smaller than the sum of its proper divisors (362508972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216236244 is a wasteful number, since it uses less digits than its factorization.

216236244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9456 (or 9454 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 216236244 is about 14704.9734443827. The cubic root of 216236244 is about 600.2186647443.

Adding to 216236244 its reverse (442632612), we get a palindrome (658868856).

The spelling of 216236244 in words is "two hundred sixteen million, two hundred thirty-six thousand, two hundred forty-four".