213633426 has 8 divisors (see below), whose sum is σ = 427266864. Its totient is φ = 71211140.

The previous prime is 213633419. The next prime is 213633463. The reversal of 213633426 is 624336312.

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

213633426 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 213633393 and 213633402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17802780 + ... + 17802791.

It is an arithmetic number, because the mean of its divisors is an integer number (53408358).

Almost surely, 2^213633426 is an apocalyptic number.

213633426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

213633426 is a wasteful number, since it uses less digits than its factorization.

213633426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35605576.

The product of its digits is 15552, while the sum is 30.

The square root of 213633426 is about 14616.2042268162. The cubic root of 213633426 is about 597.8006759173.

Adding to 213633426 its reverse (624336312), we get a palindrome (837969738).

The spelling of 213633426 in words is "two hundred thirteen million, six hundred thirty-three thousand, four hundred twenty-six".