213306030 has 48 divisors (see below), whose sum is σ = 633825504. Its totient is φ = 48755520.

The previous prime is 213306029. The next prime is 213306043. The reversal of 213306030 is 30603312.

213306030 = 7301² + 7302² + ... + 7304².

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 213305994 and 213306012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168661 + ... + 169920.

It is an arithmetic number, because the mean of its divisors is an integer number (13204698).

Almost surely, 2^213306030 is an apocalyptic number.

213306030 is an abundant number, since it is smaller than the sum of its proper divisors (420519474).

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

213306030 is a wasteful number, since it uses less digits than its factorization.

213306030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338601 (or 338598 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 213306030 is about 14605.0001711743. Note that the first 3 decimals coincide. The cubic root of 213306030 is about 597.4951406851.

Adding to 213306030 its reverse (30603312), we get a palindrome (243909342).

The spelling of 213306030 in words is "two hundred thirteen million, three hundred six thousand, thirty".