212910426 has 12 divisors (see below), whose sum is σ = 461305962. Its totient is φ = 70970136.

The previous prime is 212910403. The next prime is 212910427. The reversal of 212910426 is 624019212.

It can be written as a sum of positive squares in only one way, i.e., 141491025 + 71419401 = 11895^2 + 8451^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 212910426.

It is not an unprimeable number, because it can be changed into a prime (212910427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5914161 + ... + 5914196.

Almost surely, 2^212910426 is an apocalyptic number.

212910426 is an abundant number, since it is smaller than the sum of its proper divisors (248395536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212910426 is a wasteful number, since it uses less digits than its factorization.

212910426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11828365 (or 11828362 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 212910426 is about 14591.4504419540. The cubic root of 212910426 is about 597.1255344037.

Adding to 212910426 its reverse (624019212), we get a palindrome (836929638).

The spelling of 212910426 in words is "two hundred twelve million, nine hundred ten thousand, four hundred twenty-six".