36631224 has 96 divisors (see below), whose sum is σ = 118400400. Its totient is φ = 10463040.

The previous prime is 36631223. The next prime is 36631247. The reversal of 36631224 is 42213663.

36631224 is a `hidden beast` number, since 3 + 6 + 631 + 2 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

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 23 ways as a sum of consecutive naturals, for example, 8854 + ... + 12314.

Almost surely, 2^36631224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36631224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59200200).

36631224 is an abundant number, since it is smaller than the sum of its proper divisors (81769176).

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

36631224 is a wasteful number, since it uses less digits than its factorization.

36631224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490 (or 3473 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 36631224 is about 6052.3734187507. The cubic root of 36631224 is about 332.1114204824. Note that the first 3 decimals are identical.

Adding to 36631224 its reverse (42213663), we get a palindrome (78844887).

The spelling of 36631224 in words is "thirty-six million, six hundred thirty-one thousand, two hundred twenty-four".