26285409 has 12 divisors (see below), whose sum is σ = 38093952. Its totient is φ = 17465400.

The previous prime is 26285401. The next prime is 26285431. The reversal of 26285409 is 90458262.

It is a happy number.

It is not a de Polignac number, because 26285409 - 2³ = 26285401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26285401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1897 + ... + 7494.

It is an arithmetic number, because the mean of its divisors is an integer number (3174496).

Almost surely, 2^26285409 is an apocalyptic number.

It is an amenable number.

26285409 is a deficient number, since it is larger than the sum of its proper divisors (11808543).

26285409 is a wasteful number, since it uses less digits than its factorization.

26285409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9708 (or 9705 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 26285409 is about 5126.9297830183. The cubic root of 26285409 is about 297.3296682850.

The spelling of 26285409 in words is "twenty-six million, two hundred eighty-five thousand, four hundred nine".