212004634 has 8 divisors (see below), whose sum is σ = 318092148. Its totient is φ = 105973920.

The previous prime is 212004631. The next prime is 212004647. The reversal of 212004634 is 436400212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 207446409 + 4558225 = 14403^2 + 2135^2 .

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

It is not an unprimeable number, because it can be changed into a prime (212004631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3147 + ... + 20830.

Almost surely, 2^212004634 is an apocalyptic number.

212004634 is a deficient number, since it is larger than the sum of its proper divisors (106087514).

212004634 is a wasteful number, since it uses less digits than its factorization.

212004634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28400.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 212004634 is about 14560.3789099048. The cubic root of 212004634 is about 596.2775402867.

Adding to 212004634 its reverse (436400212), we get a palindrome (648404846).

The spelling of 212004634 in words is "two hundred twelve million, four thousand, six hundred thirty-four".