213422342 has 12 divisors (see below), whose sum is σ = 372400380. Its totient is φ = 91466676.

The previous prime is 213422329. The next prime is 213422351. The reversal of 213422342 is 243224312.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1088792 + ... + 1088987.

It is an arithmetic number, because the mean of its divisors is an integer number (31033365).

Almost surely, 2^213422342 is an apocalyptic number.

213422342 is a deficient number, since it is larger than the sum of its proper divisors (158978038).

213422342 is a wasteful number, since it uses less digits than its factorization.

213422342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177795 (or 2177788 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 213422342 is about 14608.9815524560. The cubic root of 213422342 is about 597.6037221241.

Adding to 213422342 its reverse (243224312), we get a palindrome (456646654).

The spelling of 213422342 in words is "two hundred thirteen million, four hundred twenty-two thousand, three hundred forty-two".