213568242 has 8 divisors (see below), whose sum is σ = 427136496. Its totient is φ = 71189412.

The previous prime is 213568231. The next prime is 213568273. The reversal of 213568242 is 242865312.

It is a sphenic number, since it is the product of 3 distinct primes.

213568242 is an admirable number.

It is a super-2 number, since 2×213568242² = 91222787981941128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17797348 + ... + 17797359.

It is an arithmetic number, because the mean of its divisors is an integer number (53392062).

Almost surely, 2^213568242 is an apocalyptic number.

213568242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

213568242 is a wasteful number, since it uses less digits than its factorization.

213568242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35594712.

The product of its digits is 23040, while the sum is 33.

The square root of 213568242 is about 14613.9742027964. The cubic root of 213568242 is about 597.7398692606.

The spelling of 213568242 in words is "two hundred thirteen million, five hundred sixty-eight thousand, two hundred forty-two".