213236242 has 8 divisors (see below), whose sum is σ = 319967856. Its totient is φ = 106580292.

The previous prime is 213236239. The next prime is 213236249. The reversal of 213236242 is 242632312.

213236242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (213236249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11248 + ... + 23515.

It is an arithmetic number, because the mean of its divisors is an integer number (39995982).

Almost surely, 2^213236242 is an apocalyptic number.

213236242 is a deficient number, since it is larger than the sum of its proper divisors (106731614).

213236242 is a wasteful number, since it uses less digits than its factorization.

213236242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37832.

The product of its digits is 3456, while the sum is 25.

The square root of 213236242 is about 14602.6107939642. The cubic root of 213236242 is about 597.4299721271.

Adding to 213236242 its reverse (242632312), we get a palindrome (455868554).

The spelling of 213236242 in words is "two hundred thirteen million, two hundred thirty-six thousand, two hundred forty-two".