10668538 has 8 divisors (see below), whose sum is σ = 16845120. Its totient is φ = 5053500.

The previous prime is 10668533. The next prime is 10668563. The reversal of 10668538 is 83586601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10668538² = 227635406114888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10668497 and 10668506.

It is not an unprimeable number, because it can be changed into a prime (10668533) 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 3 ways as a sum of consecutive naturals, for example, 140338 + ... + 140413.

It is an arithmetic number, because the mean of its divisors is an integer number (2105640).

Almost surely, 2^10668538 is an apocalyptic number.

10668538 is a deficient number, since it is larger than the sum of its proper divisors (6176582).

10668538 is a wasteful number, since it uses less digits than its factorization.

10668538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280772.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 10668538 is about 3266.2727993846. The cubic root of 10668538 is about 220.1413554372.

It can be divided in two parts, 1066 and 8538, that added together give a square (9604 = 98²).

The spelling of 10668538 in words is "ten million, six hundred sixty-eight thousand, five hundred thirty-eight".