213422242 has 8 divisors (see below), whose sum is σ = 349236432. Its totient is φ = 97010100.

The previous prime is 213422239. The next prime is 213422249. The reversal of 213422242 is 242224312.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 9701011 = 213422242 / (2 + 1 + 3 + 4 + 2 + 2 + 2 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (213422249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4850484 + ... + 4850527.

It is an arithmetic number, because the mean of its divisors is an integer number (43654554).

Almost surely, 2^213422242 is an apocalyptic number.

213422242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213422242 is a deficient number, since it is larger than the sum of its proper divisors (135814190).

213422242 is a wasteful number, since it uses less digits than its factorization.

213422242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9701024.

The product of its digits is 1536, while the sum is 22.

The square root of 213422242 is about 14608.9781299035. The cubic root of 213422242 is about 597.6036287874.

Adding to 213422242 its reverse (242224312), we get a palindrome (455646554).

The spelling of 213422242 in words is "two hundred thirteen million, four hundred twenty-two thousand, two hundred forty-two".