10385409 has 4 divisors (see below), whose sum is σ = 13847216. Its totient is φ = 6923604.

The previous prime is 10385407. The next prime is 10385429. The reversal of 10385409 is 90458301.

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: 90458301 = 3 ⋅30152767.

It is not a de Polignac number, because 10385409 - 2¹ = 10385407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10385407) 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, 1730899 + ... + 1730904.

It is an arithmetic number, because the mean of its divisors is an integer number (3461804).

Almost surely, 2^10385409 is an apocalyptic number.

It is an amenable number.

10385409 is a deficient number, since it is larger than the sum of its proper divisors (3461807).

10385409 is an equidigital number, since it uses as much as digits as its factorization.

10385409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3461806.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 10385409 is about 3222.6400667775. The cubic root of 10385409 is about 218.1764486210.

The spelling of 10385409 in words is "ten million, three hundred eighty-five thousand, four hundred nine".