213330407 has 4 divisors (see below), whose sum is σ = 215401680. Its totient is φ = 211259136.

The previous prime is 213330379. The next prime is 213330473. The reversal of 213330407 is 704033312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213330407 - 2²⁴ = 196553191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213330307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1035482 + ... + 1035687.

It is an arithmetic number, because the mean of its divisors is an integer number (53850420).

Almost surely, 2^213330407 is an apocalyptic number.

213330407 is a deficient number, since it is larger than the sum of its proper divisors (2071273).

213330407 is a wasteful number, since it uses less digits than its factorization.

213330407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071272.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 213330407 is about 14605.8346902873. The cubic root of 213330407 is about 597.5179007609.

Adding to 213330407 its reverse (704033312), we get a palindrome (917363719).

The spelling of 213330407 in words is "two hundred thirteen million, three hundred thirty thousand, four hundred seven".