10666404 has 60 divisors (see below), whose sum is σ = 31874304. Its totient is φ = 3046896.

The previous prime is 10666379. The next prime is 10666417. The reversal of 10666404 is 40466601.

It is a super-2 number, since 2×10666404² = 227544348582432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 84 + ... + 4619.

Almost surely, 2^10666404 is an apocalyptic number.

10666404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10666404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15937152).

10666404 is an abundant number, since it is smaller than the sum of its proper divisors (21207900).

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

10666404 is a wasteful number, since it uses less digits than its factorization.

10666404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4726 (or 4715 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 10666404 is about 3265.9461110067. The cubic root of 10666404 is about 220.1266763568.

The spelling of 10666404 in words is "ten million, six hundred sixty-six thousand, four hundred four".