26390361 has 16 divisors (see below), whose sum is σ = 37713024. Its totient is φ = 16372224.

The previous prime is 26390327. The next prime is 26390363. The reversal of 26390361 is 16309362.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-26390361 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26390363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2616 + ... + 7721.

It is an arithmetic number, because the mean of its divisors is an integer number (2357064).

Almost surely, 2^26390361 is an apocalyptic number.

It is an amenable number.

26390361 is a deficient number, since it is larger than the sum of its proper divisors (11322663).

26390361 is a wasteful number, since it uses less digits than its factorization.

26390361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10400.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 26390361 is about 5137.1549519165. The cubic root of 26390361 is about 297.7248672988.

The spelling of 26390361 in words is "twenty-six million, three hundred ninety thousand, three hundred sixty-one".