10668918 has 64 divisors (see below), whose sum is σ = 25320960. Its totient is φ = 2965248.

The previous prime is 10668907. The next prime is 10668947. The reversal of 10668918 is 81986601.

It is a super-2 number, since 2×10668918² = 227651622581448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 33930 + ... + 34242.

It is an arithmetic number, because the mean of its divisors is an integer number (395640).

Almost surely, 2^10668918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10668918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12660480).

10668918 is an abundant number, since it is smaller than the sum of its proper divisors (14652042).

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

10668918 is a wasteful number, since it uses less digits than its factorization.

10668918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 10668918 is about 3266.3309691457. The cubic root of 10668918 is about 220.1439691262.

The spelling of 10668918 in words is "ten million, six hundred sixty-eight thousand, nine hundred eighteen".