213204234 has 32 divisors (see below), whose sum is σ = 437747904. Its totient is φ = 69189120.

The previous prime is 213204221. The next prime is 213204247. The reversal of 213204234 is 432402312.

213204234 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (213204221) and next prime (213204247).

It is a self number, because there is not a number n which added to its sum of digits gives 213204234.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89904 + ... + 92244.

It is an arithmetic number, because the mean of its divisors is an integer number (13679622).

Almost surely, 2^213204234 is an apocalyptic number.

213204234 is an abundant number, since it is smaller than the sum of its proper divisors (224543670).

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

213204234 is a wasteful number, since it uses less digits than its factorization.

213204234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2742.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 213204234 is about 14601.5147844325. The cubic root of 213204234 is about 597.4000780602.

Adding to 213204234 its reverse (432402312), we get a palindrome (645606546).

The spelling of 213204234 in words is "two hundred thirteen million, two hundred four thousand, two hundred thirty-four".