213426234 has 24 divisors (see below), whose sum is σ = 528484320. Its totient is φ = 60978888.

The previous prime is 213426233. The next prime is 213426253. The reversal of 213426234 is 432624312.

213426234 is a `hidden beast` number, since 2 + 1 + 3 + 426 + 234 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 213426198 and 213426207.

It is not an unprimeable number, because it can be changed into a prime (213426233) 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, 846804 + ... + 847055.

It is an arithmetic number, because the mean of its divisors is an integer number (22020180).

Almost surely, 2^213426234 is an apocalyptic number.

213426234 is an abundant number, since it is smaller than the sum of its proper divisors (315058086).

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

213426234 is a wasteful number, since it uses less digits than its factorization.

213426234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693874 (or 1693871 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 213426234 is about 14609.1147575751. The cubic root of 213426234 is about 597.6073547640.

The spelling of 213426234 in words is "two hundred thirteen million, four hundred twenty-six thousand, two hundred thirty-four".