10218772 has 12 divisors (see below), whose sum is σ = 17951220. Its totient is φ = 5089856.

The previous prime is 10218763. The next prime is 10218829. The reversal of 10218772 is 27781201.

It can be written as a sum of positive squares in 2 ways, for example, as 571536 + 9647236 = 756^2 + 3106^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10218772.

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 3 ways as a sum of consecutive naturals, for example, 3673 + ... + 5824.

It is an arithmetic number, because the mean of its divisors is an integer number (1495935).

Almost surely, 2^10218772 is an apocalyptic number.

It is an amenable number.

10218772 is a deficient number, since it is larger than the sum of its proper divisors (7732448).

10218772 is a wasteful number, since it uses less digits than its factorization.

10218772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9770 (or 9768 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 10218772 is about 3196.6814042066. The cubic root of 10218772 is about 217.0032491178.

Adding to 10218772 its reverse (27781201), we get a palindrome (37999973).

The spelling of 10218772 in words is "ten million, two hundred eighteen thousand, seven hundred seventy-two".