236221230 has 128 divisors (see below), whose sum is σ = 668049408. Its totient is φ = 52348032.

The previous prime is 236221207. The next prime is 236221241. The reversal of 236221230 is 32122632.

236221230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 236221197 and 236221206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1449129 + ... + 1449291.

It is an arithmetic number, because the mean of its divisors is an integer number (5219136).

Almost surely, 2^236221230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 236221230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334024704).

236221230 is an abundant number, since it is smaller than the sum of its proper divisors (431828178).

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

236221230 is a wasteful number, since it uses less digits than its factorization.

236221230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 236221230 is about 15369.4902322751. The cubic root of 236221230 is about 618.1676999043.

Adding to 236221230 its reverse (32122632), we get a palindrome (268343862).

The spelling of 236221230 in words is "two hundred thirty-six million, two hundred twenty-one thousand, two hundred thirty".