213266430 has 48 divisors (see below), whose sum is σ = 597149280. Its totient is φ = 52496064.

The previous prime is 213266387. The next prime is 213266441. The reversal of 213266430 is 34662312.

213266430 is a `hidden beast` number, since 2 + 13 + 2 + 6 + 643 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 213266394 and 213266403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89970 + ... + 92309.

It is an arithmetic number, because the mean of its divisors is an integer number (12440610).

Almost surely, 2^213266430 is an apocalyptic number.

213266430 is an abundant number, since it is smaller than the sum of its proper divisors (383882850).

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

213266430 is a wasteful number, since it uses less digits than its factorization.

213266430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182305 (or 182302 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 213266430 is about 14603.6444081606. The cubic root of 213266430 is about 597.4581636528.

The spelling of 213266430 in words is "two hundred thirteen million, two hundred sixty-six thousand, four hundred thirty".