215340230 has 16 divisors (see below), whose sum is σ = 442985760. Its totient is φ = 73830912.

The previous prime is 215340197. The next prime is 215340233. The reversal of 215340230 is 32043512.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215340233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1538075 + ... + 1538214.

It is an arithmetic number, because the mean of its divisors is an integer number (27686610).

Almost surely, 2^215340230 is an apocalyptic number.

215340230 is an abundant number, since it is smaller than the sum of its proper divisors (227645530).

215340230 is a wasteful number, since it uses less digits than its factorization.

215340230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076303.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 215340230 is about 14674.4754591093. The cubic root of 215340230 is about 599.3884788000.

Adding to 215340230 its reverse (32043512), we get a palindrome (247383742).

The spelling of 215340230 in words is "two hundred fifteen million, three hundred forty thousand, two hundred thirty".