213622046 has 16 divisors (see below), whose sum is σ = 350872560. Its totient is φ = 96737280.

The previous prime is 213622021. The next prime is 213622049. The reversal of 213622046 is 640226312.

It is a super-2 number, since 2×213622046² = 91268757074452232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213622049) 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 7 ways as a sum of consecutive naturals, for example, 12131 + ... + 23966.

It is an arithmetic number, because the mean of its divisors is an integer number (21929535).

Almost surely, 2^213622046 is an apocalyptic number.

213622046 is a deficient number, since it is larger than the sum of its proper divisors (137250514).

213622046 is a wasteful number, since it uses less digits than its factorization.

213622046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36379.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 213622046 is about 14615.8149276734. The cubic root of 213622046 is about 597.7900610170.

Adding to 213622046 its reverse (640226312), we get a palindrome (853848358).

The spelling of 213622046 in words is "two hundred thirteen million, six hundred twenty-two thousand, forty-six".