26138223 has 6 divisors (see below), whose sum is σ = 37755224. Its totient is φ = 17425476.

The previous prime is 26138213. The next prime is 26138249. The reversal of 26138223 is 32283162.

26138223 is a `hidden beast` number, since 261 + 382 + 23 = 666.

It is not a de Polignac number, because 26138223 - 2⁸ = 26137967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26138213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1452115 + ... + 1452132.

Almost surely, 2^26138223 is an apocalyptic number.

26138223 is a deficient number, since it is larger than the sum of its proper divisors (11617001).

26138223 is a wasteful number, since it uses less digits than its factorization.

26138223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904253 (or 2904250 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 26138223 is about 5112.5554275724. Note that the first 3 decimals coincide. The cubic root of 26138223 is about 296.7736601553.

The spelling of 26138223 in words is "twenty-six million, one hundred thirty-eight thousand, two hundred twenty-three".