10649668 has 12 divisors (see below), whose sum is σ = 19091772. Its totient is φ = 5194880.

The previous prime is 10649663. The next prime is 10649693. The reversal of 10649668 is 86694601.

It can be written as a sum of positive squares in 2 ways, for example, as 4656964 + 5992704 = 2158^2 + 2448^2 .

It is a super-2 number, since 2×10649668² = 226830857020448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10649668.

It is not an unprimeable number, because it can be changed into a prime (10649663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32305 + ... + 32632.

It is an arithmetic number, because the mean of its divisors is an integer number (1590981).

Almost surely, 2^10649668 is an apocalyptic number.

It is an amenable number.

10649668 is a deficient number, since it is larger than the sum of its proper divisors (8442104).

10649668 is a wasteful number, since it uses less digits than its factorization.

10649668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64982 (or 64980 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 10649668 is about 3263.3829073524. The cubic root of 10649668 is about 220.0114870035.

The spelling of 10649668 in words is "ten million, six hundred forty-nine thousand, six hundred sixty-eight".