212434330 has 16 divisors (see below), whose sum is σ = 388651464. Its totient is φ = 83580480.

The previous prime is 212434283. The next prime is 212434331. The reversal of 212434330 is 33434212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 79977249 + 132457081 = 8943^2 + 11509^2 .

It is not an unprimeable number, because it can be changed into a prime (212434331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173517 + ... + 174736.

Almost surely, 2^212434330 is an apocalyptic number.

212434330 is a deficient number, since it is larger than the sum of its proper divisors (176217134).

212434330 is a wasteful number, since it uses less digits than its factorization.

212434330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348321.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 212434330 is about 14575.1271006465. The cubic root of 212434330 is about 596.6801182254.

Adding to 212434330 its reverse (33434212), we get a palindrome (245868542).

The spelling of 212434330 in words is "two hundred twelve million, four hundred thirty-four thousand, three hundred thirty".