213000304 has 20 divisors (see below), whose sum is σ = 450205560. Its totient is φ = 96818240.

The previous prime is 213000301. The next prime is 213000311. The reversal of 213000304 is 403000312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213000301) 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, 604939 + ... + 605290.

It is an arithmetic number, because the mean of its divisors is an integer number (22510278).

Almost surely, 2^213000304 is an apocalyptic number.

It is an amenable number.

213000304 is an abundant number, since it is smaller than the sum of its proper divisors (237205256).

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

213000304 is a wasteful number, since it uses less digits than its factorization.

213000304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210248 (or 1210242 counting only the distinct ones).

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

The square root of 213000304 is about 14594.5299341911. The cubic root of 213000304 is about 597.2095461008.

Adding to 213000304 its reverse (403000312), we get a palindrome (616000616).

The spelling of 213000304 in words is "two hundred thirteen million, three hundred four", and thus it is an aban number.