36621224 has 8 divisors (see below), whose sum is σ = 68664810. Its totient is φ = 18310608.

The previous prime is 36621217. The next prime is 36621239. The reversal of 36621224 is 42212663.

36621224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 31248100 + 5373124 = 5590^2 + 2318^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×36621224² = 2682228094516352, which contains 22 as substring.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 36621193 and 36621202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2288819 + ... + 2288834.

Almost surely, 2^36621224 is an apocalyptic number.

It is an amenable number.

36621224 is a deficient number, since it is larger than the sum of its proper divisors (32043586).

36621224 is a wasteful number, since it uses less digits than its factorization.

36621224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4577659 (or 4577655 counting only the distinct ones).

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

The square root of 36621224 is about 6051.5472401692. The cubic root of 36621224 is about 332.0811965723.

Adding to 36621224 its reverse (42212663), we get a palindrome (78833887).

The spelling of 36621224 in words is "thirty-six million, six hundred twenty-one thousand, two hundred twenty-four".