10216646 has 32 divisors (see below), whose sum is σ = 17784576. Its totient is φ = 4356000.

The previous prime is 10216637. The next prime is 10216649. The reversal of 10216646 is 64661201.

10216646 = T₅₄₈ + T₅₄₉ + ... + T₆₀₈.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10216649) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 30701 + ... + 31031.

It is an arithmetic number, because the mean of its divisors is an integer number (555768).

Almost surely, 2^10216646 is an apocalyptic number.

10216646 is a deficient number, since it is larger than the sum of its proper divisors (7567930).

10216646 is a wasteful number, since it uses less digits than its factorization.

10216646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 10216646 is about 3196.3488545526. The cubic root of 10216646 is about 216.9881990086.

Adding to 10216646 its reverse (64661201), we get a palindrome (74877847).

It can be divided in two parts, 1021 and 6646, that added together give a palindrome (7667).

The spelling of 10216646 in words is "ten million, two hundred sixteen thousand, six hundred forty-six".