213202026 has 24 divisors (see below), whose sum is σ = 477867780. Its totient is φ = 68616576.

The previous prime is 213202001. The next prime is 213202027. The reversal of 213202026 is 620202312.

213202026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 198387225 + 14814801 = 14085^2 + 3849^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (213202027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203695 + ... + 204738.

Almost surely, 2^213202026 is an apocalyptic number.

213202026 is an abundant number, since it is smaller than the sum of its proper divisors (264665754).

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

213202026 is a wasteful number, since it uses less digits than its factorization.

213202026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408470 (or 408467 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 213202026 is about 14601.4391756429. The cubic root of 213202026 is about 597.3980157748.

Adding to 213202026 its reverse (620202312), we get a palindrome (833404338).

The spelling of 213202026 in words is "two hundred thirteen million, two hundred two thousand, twenty-six".