10399028 has 12 divisors (see below), whose sum is σ = 18228000. Its totient is φ = 5191032.

The previous prime is 10399021. The next prime is 10399031. The reversal of 10399028 is 82099301.

It is a junction number, because it is equal to n+sod(n) for n = 10398985 and 10399003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10399021) 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, 1223 + ... + 4721.

It is an arithmetic number, because the mean of its divisors is an integer number (1519000).

Almost surely, 2^10399028 is an apocalyptic number.

It is an amenable number.

10399028 is a deficient number, since it is larger than the sum of its proper divisors (7828972).

10399028 is a wasteful number, since it uses less digits than its factorization.

10399028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4246 (or 4244 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 10399028 is about 3224.7523935955. The cubic root of 10399028 is about 218.2717761832.

The spelling of 10399028 in words is "ten million, three hundred ninety-nine thousand, twenty-eight".