213240282 has 32 divisors (see below), whose sum is σ = 455974272. Its totient is φ = 66246144.

The previous prime is 213240281. The next prime is 213240283. The reversal of 213240282 is 282042312.

It is an interprime number because it is at equal distance from previous prime (213240281) and next prime (213240283).

It is not an unprimeable number, because it can be changed into a prime (213240281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358 + ... + 20654.

It is an arithmetic number, because the mean of its divisors is an integer number (14249196).

Almost surely, 2^213240282 is an apocalyptic number.

213240282 is an abundant number, since it is smaller than the sum of its proper divisors (242733990).

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

213240282 is a wasteful number, since it uses less digits than its factorization.

213240282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20422.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 213240282 is about 14602.7491247368. The cubic root of 213240282 is about 597.4337450971.

Adding to 213240282 its reverse (282042312), we get a palindrome (495282594).

The spelling of 213240282 in words is "two hundred thirteen million, two hundred forty thousand, two hundred eighty-two".