10399518 has 12 divisors (see below), whose sum is σ = 22532328. Its totient is φ = 3466500.

The previous prime is 10399451. The next prime is 10399531. The reversal of 10399518 is 81599301.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 288858 + ... + 288893.

It is an arithmetic number, because the mean of its divisors is an integer number (1877694).

Almost surely, 2^10399518 is an apocalyptic number.

10399518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10399518 is an abundant number, since it is smaller than the sum of its proper divisors (12132810).

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

10399518 is a wasteful number, since it uses less digits than its factorization.

10399518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577759 (or 577756 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 10399518 is about 3224.8283675259. The cubic root of 10399518 is about 218.2752044360.

The spelling of 10399518 in words is "ten million, three hundred ninety-nine thousand, five hundred eighteen".