213240568 has 16 divisors (see below), whose sum is σ = 412724160. Its totient is φ = 103180800.

The previous prime is 213240563. The next prime is 213240581. The reversal of 213240568 is 865042312.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213240563) 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, 429673 + ... + 430168.

It is an arithmetic number, because the mean of its divisors is an integer number (25795260).

Almost surely, 2^213240568 is an apocalyptic number.

It is an amenable number.

213240568 is a deficient number, since it is larger than the sum of its proper divisors (199483592).

213240568 is a wasteful number, since it uses less digits than its factorization.

213240568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859878 (or 859874 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 213240568 is about 14602.7589174101. The cubic root of 213240568 is about 597.4340121917.

The spelling of 213240568 in words is "two hundred thirteen million, two hundred forty thousand, five hundred sixty-eight".