10438681 has 4 divisors (see below), whose sum is σ = 11387664. Its totient is φ = 9489700.

The previous prime is 10438679. The next prime is 10438691. The reversal of 10438681 is 18683401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 10438681 - 2¹ = 10438679 is a prime.

It is a super-2 number, since 2×10438681² = 217932122039522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10438691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474475 + ... + 474496.

It is an arithmetic number, because the mean of its divisors is an integer number (2846916).

Almost surely, 2^10438681 is an apocalyptic number.

10438681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10438681 is a deficient number, since it is larger than the sum of its proper divisors (948983).

10438681 is an equidigital number, since it uses as much as digits as its factorization.

10438681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948982.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 10438681 is about 3230.8947677075. The cubic root of 10438681 is about 218.5488582623.

The spelling of 10438681 in words is "ten million, four hundred thirty-eight thousand, six hundred eighty-one".