212043434 has 8 divisors (see below), whose sum is σ = 318187488. Its totient is φ = 105980940.

The previous prime is 212043427. The next prime is 212043451. The reversal of 212043434 is 434340212.

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

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, 13412 + ... + 24575.

It is an arithmetic number, because the mean of its divisors is an integer number (39773436).

Almost surely, 2^212043434 is an apocalyptic number.

212043434 is a deficient number, since it is larger than the sum of its proper divisors (106144054).

212043434 is a wasteful number, since it uses less digits than its factorization.

212043434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40780.

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

The square root of 212043434 is about 14561.7112318573. The cubic root of 212043434 is about 596.3139139528.

Adding to 212043434 its reverse (434340212), we get a palindrome (646383646).

It can be divided in two parts, 2120 and 43434, that added together give a palindrome (45554).

The spelling of 212043434 in words is "two hundred twelve million, forty-three thousand, four hundred thirty-four".