23212016 has 40 divisors (see below), whose sum is σ = 46544640. Its totient is φ = 11208384.

The previous prime is 23212009. The next prime is 23212051. The reversal of 23212016 is 61021232.

It is a junction number, because it is equal to n+sod(n) for n = 23211985 and 23212003.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 63065 + ... + 63431.

It is an arithmetic number, because the mean of its divisors is an integer number (1163616).

Almost surely, 2^23212016 is an apocalyptic number.

It is an amenable number.

23212016 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

23212016 is a wasteful number, since it uses less digits than its factorization.

23212016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 23212016 is about 4817.8850131567. The cubic root of 23212016 is about 285.2578603969.

Adding to 23212016 its reverse (61021232), we get a palindrome (84233248).

The spelling of 23212016 in words is "twenty-three million, two hundred twelve thousand, sixteen".