10421166 has 32 divisors (see below), whose sum is σ = 23931648. Its totient is φ = 2963520.

The previous prime is 10421143. The next prime is 10421207. The reversal of 10421166 is 66112401.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 15 ways as a sum of consecutive naturals, for example, 11361 + ... + 12243.

It is an arithmetic number, because the mean of its divisors is an integer number (747864).

Almost surely, 2^10421166 is an apocalyptic number.

10421166 is an abundant number, since it is smaller than the sum of its proper divisors (13510482).

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

10421166 is a wasteful number, since it uses less digits than its factorization.

10421166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 10421166 is about 3228.1830803100. The cubic root of 10421166 is about 218.4265558955.

Adding to 10421166 its reverse (66112401), we get a palindrome (76533567).

The spelling of 10421166 in words is "ten million, four hundred twenty-one thousand, one hundred sixty-six".