13540026 has 16 divisors (see below), whose sum is σ = 27244224. Its totient is φ = 4485984.

The previous prime is 13540001. The next prime is 13540073. The reversal of 13540026 is 62004531.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13539984 and 13540011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5755 + ... + 7758.

It is an arithmetic number, because the mean of its divisors is an integer number (1702764).

Almost surely, 2^13540026 is an apocalyptic number.

13540026 is an abundant number, since it is smaller than the sum of its proper divisors (13704198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13540026 is a wasteful number, since it uses less digits than its factorization.

13540026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13685.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 13540026 is about 3679.6774315149. The cubic root of 13540026 is about 238.3452489954.

Adding to 13540026 its reverse (62004531), we get a palindrome (75544557).

The spelling of 13540026 in words is "thirteen million, five hundred forty thousand, twenty-six".