10399806 has 48 divisors (see below), whose sum is σ = 24039600. Its totient is φ = 3332448.

The previous prime is 10399793. The next prime is 10399811. The reversal of 10399806 is 60899301.

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 23 ways as a sum of consecutive naturals, for example, 45300 + ... + 45528.

It is an arithmetic number, because the mean of its divisors is an integer number (500825).

Almost surely, 2^10399806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10399806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12019800).

10399806 is an abundant number, since it is smaller than the sum of its proper divisors (13639794).

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

10399806 is a wasteful number, since it uses less digits than its factorization.

10399806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 10399806 is about 3224.8730207560. The cubic root of 10399806 is about 218.2772193588.

The spelling of 10399806 in words is "ten million, three hundred ninety-nine thousand, eight hundred six".