213430 has 16 divisors (see below), whose sum is σ = 439200. Its totient is φ = 73152.

The previous prime is 213407. The next prime is 213449. The reversal of 213430 is 34312.

213430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 213430.

It is a congruent number.

It is an unprimeable number.

213430 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1455 + ... + 1594.

It is an arithmetic number, because the mean of its divisors is an integer number (27450).

2²¹³⁴³⁰ is an apocalyptic number.

213430 is an abundant number, since it is smaller than the sum of its proper divisors (225770).

It is a weird number, because it is abundant, but not a pseudoperfect number.

213430 is a wasteful number, since it uses less digits than its factorization.

213430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 213430 is about 461.9848482364. The cubic root of 213430 is about 59.7610869758.

Adding to 213430 its reverse (34312), we get a palindrome (247742).

The spelling of 213430 in words is "two hundred thirteen thousand, four hundred thirty".