13540422 has 64 divisors (see below), whose sum is σ = 32845824. Its totient is φ = 3637920.

The previous prime is 13540421. The next prime is 13540433. The reversal of 13540422 is 22404531.

13540422 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13540421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103297 + ... + 103427.

It is an arithmetic number, because the mean of its divisors is an integer number (513216).

Almost surely, 2^13540422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13540422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16422912).

13540422 is an abundant number, since it is smaller than the sum of its proper divisors (19305402).

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

13540422 is a wasteful number, since it uses less digits than its factorization.

13540422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 13540422 is about 3679.7312401859. The cubic root of 13540422 is about 238.3475725704.

Adding to 13540422 its reverse (22404531), we get a palindrome (35944953).

The spelling of 13540422 in words is "thirteen million, five hundred forty thousand, four hundred twenty-two".