236142216 has 40 divisors (see below), whose sum is σ = 661418670. Its totient is φ = 78713856.

The previous prime is 236142209. The next prime is 236142217. The reversal of 236142216 is 612241632.

236142216 is a `hidden beast` number, since 23 + 614 + 2 + 21 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 235745316 + 396900 = 15354^2 + 630^2 .

It is a super-4 number, since 4×236142216⁴ (a number of 35 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a self number, because there is not a number n which added to its sum of digits gives 236142216.

It is not an unprimeable number, because it can be changed into a prime (236142217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 181561 + ... + 182856.

Almost surely, 2^236142216 is an apocalyptic number.

It is an amenable number.

236142216 is an abundant number, since it is smaller than the sum of its proper divisors (425276454).

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

236142216 is a wasteful number, since it uses less digits than its factorization.

236142216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364435 (or 364422 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 236142216 is about 15366.9195351573. The cubic root of 236142216 is about 618.0987682654.

Adding to 236142216 its reverse (612241632), we get a palindrome (848383848).

The spelling of 236142216 in words is "two hundred thirty-six million, one hundred forty-two thousand, two hundred sixteen".