213224630 has 8 divisors (see below), whose sum is σ = 383804352. Its totient is φ = 85289848.

The previous prime is 213224623. The next prime is 213224633. The reversal of 213224630 is 36422312.

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

It is a junction number, because it is equal to n+sod(n) for n = 213224596 and 213224605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213224633) 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, 10661222 + ... + 10661241.

It is an arithmetic number, because the mean of its divisors is an integer number (47975544).

Almost surely, 2^213224630 is an apocalyptic number.

213224630 is a deficient number, since it is larger than the sum of its proper divisors (170579722).

213224630 is a wasteful number, since it uses less digits than its factorization.

213224630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21322470.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 213224630 is about 14602.2131884177. The cubic root of 213224630 is about 597.4191273747.

Adding to 213224630 its reverse (36422312), we get a palindrome (249646942).

It can be divided in two parts, 21322 and 4630, that added together give a palindrome (25952).

The spelling of 213224630 in words is "two hundred thirteen million, two hundred twenty-four thousand, six hundred thirty".