26381243 has 8 divisors (see below), whose sum is σ = 30182880. Its totient is φ = 22587840.

The previous prime is 26381237. The next prime is 26381261. The reversal of 26381243 is 34218362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26381243 - 2¹⁰ = 26380219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26381233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8303 + ... + 11031.

It is an arithmetic number, because the mean of its divisors is an integer number (3772860).

Almost surely, 2^26381243 is an apocalyptic number.

26381243 is a deficient number, since it is larger than the sum of its proper divisors (3801637).

26381243 is a wasteful number, since it uses less digits than its factorization.

26381243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4117.

The product of its digits is 6912, while the sum is 29.

The square root of 26381243 is about 5136.2674190505. The cubic root of 26381243 is about 297.6905748787.

The spelling of 26381243 in words is "twenty-six million, three hundred eighty-one thousand, two hundred forty-three".