10638205 has 4 divisors (see below), whose sum is σ = 12765852. Its totient is φ = 8510560.

The previous prime is 10638161. The next prime is 10638223. The reversal of 10638205 is 50283601.

It is a happy number.

10638205 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2424249 + 8213956 = 1557^2 + 2866^2 .

It is not a de Polignac number, because 10638205 - 2⁷ = 10638077 is a prime.

It is a super-2 number, since 2×10638205² = 226342811244050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10638205.

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 3 ways as a sum of consecutive naturals, for example, 1063816 + ... + 1063825.

It is an arithmetic number, because the mean of its divisors is an integer number (3191463).

Almost surely, 2^10638205 is an apocalyptic number.

It is an amenable number.

10638205 is a deficient number, since it is larger than the sum of its proper divisors (2127647).

10638205 is an equidigital number, since it uses as much as digits as its factorization.

10638205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127646.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 10638205 is about 3261.6261281759. The cubic root of 10638205 is about 219.9325206269.

The spelling of 10638205 in words is "ten million, six hundred thirty-eight thousand, two hundred five".