26440123 has 4 divisors (see below), whose sum is σ = 26642088. Its totient is φ = 26238160.

The previous prime is 26440103. The next prime is 26440129. The reversal of 26440123 is 32104462.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26440123 - 2¹⁷ = 26309051 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26440094 and 26440103.

It is not an unprimeable number, because it can be changed into a prime (26440129) 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, 100786 + ... + 101047.

It is an arithmetic number, because the mean of its divisors is an integer number (6660522).

Almost surely, 2^26440123 is an apocalyptic number.

26440123 is a deficient number, since it is larger than the sum of its proper divisors (201965).

26440123 is a wasteful number, since it uses less digits than its factorization.

26440123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201964.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 26440123 is about 5141.9960132229. The cubic root of 26440123 is about 297.9118810670.

Adding to 26440123 its reverse (32104462), we get a palindrome (58544585).

The spelling of 26440123 in words is "twenty-six million, four hundred forty thousand, one hundred twenty-three".