212013430 has 16 divisors (see below), whose sum is σ = 387881424. Its totient is φ = 83414880.

The previous prime is 212013421. The next prime is 212013469. The reversal of 212013430 is 34310212.

It is a happy number.

It is a congruent 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, 173172 + ... + 174391.

It is an arithmetic number, because the mean of its divisors is an integer number (24242589).

Almost surely, 2^212013430 is an apocalyptic number.

212013430 is a deficient number, since it is larger than the sum of its proper divisors (175867994).

212013430 is a wasteful number, since it uses less digits than its factorization.

212013430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347631.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 212013430 is about 14560.6809593508. The cubic root of 212013430 is about 596.2857866233.

Adding to 212013430 its reverse (34310212), we get a palindrome (246323642).

The spelling of 212013430 in words is "two hundred twelve million, thirteen thousand, four hundred thirty".