213340 has 12 divisors (see below), whose sum is σ = 448056. Its totient is φ = 85328.

The previous prime is 213337. The next prime is 213349. The reversal of 213340 is 43312.

It is a self number, because there is not a number n which added to its sum of digits gives 213340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5314 + ... + 5353.

It is an arithmetic number, because the mean of its divisors is an integer number (37338).

2²¹³³⁴⁰ is an apocalyptic number.

213340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213340 is an abundant number, since it is smaller than the sum of its proper divisors (234716).

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

213340 is a wasteful number, since it uses less digits than its factorization.

213340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10676 (or 10674 counting only the distinct ones).

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

The square root of 213340 is about 461.8874321737. The cubic root of 213340 is about 59.7526856983.

Adding to 213340 its reverse (43312), we get a palindrome (256652).

The spelling of 213340 in words is "two hundred thirteen thousand, three hundred forty".