212435434 has 16 divisors (see below), whose sum is σ = 337696128. Its totient is φ = 99881152.

The previous prime is 212435393. The next prime is 212435471. The reversal of 212435434 is 434534212.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 51849 + ... + 55795.

It is an arithmetic number, because the mean of its divisors is an integer number (21106008).

Almost surely, 2^212435434 is an apocalyptic number.

212435434 is a deficient number, since it is larger than the sum of its proper divisors (125260694).

212435434 is a wasteful number, since it uses less digits than its factorization.

212435434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5549.

The product of its digits is 11520, while the sum is 28.

The square root of 212435434 is about 14575.1649733374. The cubic root of 212435434 is about 596.6811518526.

Adding to 212435434 its reverse (434534212), we get a palindrome (646969646).

The spelling of 212435434 in words is "two hundred twelve million, four hundred thirty-five thousand, four hundred thirty-four".