540396 has 36 divisors (see below), whose sum is σ = 1447992. Its totient is φ = 169344.

The previous prime is 540391. The next prime is 540433. The reversal of 540396 is 693045.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (540391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171 + ... + 1053.

It is an arithmetic number, because the mean of its divisors is an integer number (40222).

2⁵⁴⁰³⁹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 540396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (723996).

540396 is an abundant number, since it is smaller than the sum of its proper divisors (907596).

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

540396 is a wasteful number, since it uses less digits than its factorization.

540396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 540396 is about 735.1163173267. The cubic root of 540396 is about 81.4524293632.

It can be divided in two parts, 54039 and 6, that added together give a palindrome (54045).

The spelling of 540396 in words is "five hundred forty thousand, three hundred ninety-six".