236421230 has 8 divisors (see below), whose sum is σ = 425558232. Its totient is φ = 94568488.

The previous prime is 236421197. The next prime is 236421257. The reversal of 236421230 is 32124632.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 236421196 and 236421205.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11821052 + ... + 11821071.

It is an arithmetic number, because the mean of its divisors is an integer number (53194779).

Almost surely, 2^236421230 is an apocalyptic number.

236421230 is a deficient number, since it is larger than the sum of its proper divisors (189137002).

236421230 is a wasteful number, since it uses less digits than its factorization.

236421230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23642130.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 236421230 is about 15375.9952523406. The cubic root of 236421230 is about 618.3421107936.

Adding to 236421230 its reverse (32124632), we get a palindrome (268545862).

The spelling of 236421230 in words is "two hundred thirty-six million, four hundred twenty-one thousand, two hundred thirty".