36631222 has 8 divisors (see below), whose sum is σ = 54997272. Its totient is φ = 18298800.

The previous prime is 36631219. The next prime is 36631223. The reversal of 36631222 is 22213663.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36631223) 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, 5479 + ... + 10162.

It is an arithmetic number, because the mean of its divisors is an integer number (6874659).

Almost surely, 2^36631222 is an apocalyptic number.

36631222 is a deficient number, since it is larger than the sum of its proper divisors (18366050).

36631222 is a wasteful number, since it uses less digits than its factorization.

36631222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16814.

The product of its digits is 2592, while the sum is 25.

The square root of 36631222 is about 6052.3732535263. The cubic root of 36631222 is about 332.1114144382. Note that the first 3 decimals are identical.

Adding to 36631222 its reverse (22213663), we get a palindrome (58844885).

The spelling of 36631222 in words is "thirty-six million, six hundred thirty-one thousand, two hundred twenty-two".