10402866 has 12 divisors (see below), whose sum is σ = 22539582. Its totient is φ = 3467616.

The previous prime is 10402859. The next prime is 10402867. The reversal of 10402866 is 66820401.

It can be written as a sum of positive squares in only one way, i.e., 10017225 + 385641 = 3165^2 + 621^2 .

It is not an unprimeable number, because it can be changed into a prime (10402867) 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 5 ways as a sum of consecutive naturals, for example, 288951 + ... + 288986.

Almost surely, 2^10402866 is an apocalyptic number.

10402866 is an abundant number, since it is smaller than the sum of its proper divisors (12136716).

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

10402866 is a wasteful number, since it uses less digits than its factorization.

10402866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577945 (or 577942 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 10402866 is about 3225.3474231468. The cubic root of 10402866 is about 218.2986256168.

The spelling of 10402866 in words is "ten million, four hundred two thousand, eight hundred sixty-six".