10668642 has 32 divisors (see below), whose sum is σ = 22522752. Its totient is φ = 3362304.

The previous prime is 10668641. The next prime is 10668643. The reversal of 10668642 is 24686601.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10668641) and next prime (10668643).

It is a super-2 number, since 2×10668642² = 227639844248328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10668641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12988 + ... + 13784.

It is an arithmetic number, because the mean of its divisors is an integer number (703836).

Almost surely, 2^10668642 is an apocalyptic number.

10668642 is an abundant number, since it is smaller than the sum of its proper divisors (11854110).

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

10668642 is a wasteful number, since it uses less digits than its factorization.

10668642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 10668642 is about 3266.2887196327. The cubic root of 10668642 is about 220.1420707688.

The spelling of 10668642 in words is "ten million, six hundred sixty-eight thousand, six hundred forty-two".