10438181 has 8 divisors (see below), whose sum is σ = 11545464. Its totient is φ = 9374400.

The previous prime is 10438157. The next prime is 10438189. The reversal of 10438181 is 18183401.

10438181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3724900 + 6713281 = 1930^2 + 2591^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10438181 - 2⁶ = 10438117 is a prime.

It is a super-2 number, since 2×10438181² = 217911245177522, 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 10438181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10438189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10370 + ... + 11331.

It is an arithmetic number, because the mean of its divisors is an integer number (1443183).

Almost surely, 2^10438181 is an apocalyptic number.

It is an amenable number.

10438181 is a deficient number, since it is larger than the sum of its proper divisors (1107283).

10438181 is a wasteful number, since it uses less digits than its factorization.

10438181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21751.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 10438181 is about 3230.8173888352. The cubic root of 10438181 is about 218.5453687993.

The spelling of 10438181 in words is "ten million, four hundred thirty-eight thousand, one hundred eighty-one".