36321216 has 56 divisors (see below), whose sum is σ = 97103184. Its totient is φ = 11980800.

The previous prime is 36321211. The next prime is 36321221. The reversal of 36321216 is 61212363.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (36321211) and next prime (36321221).

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36321211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18456 + ... + 20328.

Almost surely, 2^36321216 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 36321216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48551592).

36321216 is an abundant number, since it is smaller than the sum of its proper divisors (60781968).

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

36321216 is a wasteful number, since it uses less digits than its factorization.

36321216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989 (or 1979 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

The square root of 36321216 is about 6026.7085544267. The cubic root of 36321216 is about 331.1718849387.

Adding to 36321216 its reverse (61212363), we get a palindrome (97533579).

The spelling of 36321216 in words is "thirty-six million, three hundred twenty-one thousand, two hundred sixteen".