10438409 has 4 divisors (see below), whose sum is σ = 10462416. Its totient is φ = 10414404.

The previous prime is 10438387. The next prime is 10438411. The reversal of 10438409 is 90483401.

10438409 is digitally balanced in base 2, 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90483401 = 17 ⋅5322553.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10438409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10438469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11339 + ... + 12224.

It is an arithmetic number, because the mean of its divisors is an integer number (2615604).

Almost surely, 2^10438409 is an apocalyptic number.

It is an amenable number.

10438409 is a deficient number, since it is larger than the sum of its proper divisors (24007).

10438409 is an equidigital number, since it uses as much as digits as its factorization.

10438409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24006.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 10438409 is about 3230.8526738309. The cubic root of 10438409 is about 218.5469600082.

The spelling of 10438409 in words is "ten million, four hundred thirty-eight thousand, four hundred nine".