26540321 has 8 divisors (see below), whose sum is σ = 29152320. Its totient is φ = 24049872.

The previous prime is 26540317. The next prime is 26540341. The reversal of 26540321 is 12304562.

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 26540321 - 2² = 26540317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26540341) 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, 29930 + ... + 30803.

It is an arithmetic number, because the mean of its divisors is an integer number (3644040).

Almost surely, 2^26540321 is an apocalyptic number.

It is an amenable number.

26540321 is a deficient number, since it is larger than the sum of its proper divisors (2611999).

26540321 is a wasteful number, since it uses less digits than its factorization.

26540321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60775.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 26540321 is about 5151.7299036343. The cubic root of 26540321 is about 298.2877308933.

Adding to 26540321 its reverse (12304562), we get a palindrome (38844883).

The spelling of 26540321 in words is "twenty-six million, five hundred forty thousand, three hundred twenty-one".