213270234 has 16 divisors (see below), whose sum is σ = 441249120. Its totient is φ = 68638640.

The previous prime is 213270223. The next prime is 213270241. The reversal of 213270234 is 432072312.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612672 + ... + 613019.

It is an arithmetic number, because the mean of its divisors is an integer number (27578070).

Almost surely, 2^213270234 is an apocalyptic number.

213270234 is an abundant number, since it is smaller than the sum of its proper divisors (227978886).

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

213270234 is a wasteful number, since it uses less digits than its factorization.

213270234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225725.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 213270234 is about 14603.7746490419. The cubic root of 213270234 is about 597.4617158876.

The spelling of 213270234 in words is "two hundred thirteen million, two hundred seventy thousand, two hundred thirty-four".