540240432 has 80 divisors (see below), whose sum is σ = 1417409280. Its totient is φ = 177293056.

The previous prime is 540240409. The next prime is 540240439. The reversal of 540240432 is 234042045.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (540240439) 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 15 ways as a sum of consecutive naturals, for example, 1504669 + ... + 1505027.

It is an arithmetic number, because the mean of its divisors is an integer number (17717616).

Almost surely, 2^540240432 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 540240432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (708704640).

540240432 is an abundant number, since it is smaller than the sum of its proper divisors (877168848).

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

540240432 is a wasteful number, since it uses less digits than its factorization.

540240432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 540240432 is about 23243.0727744849. The cubic root of 540240432 is about 814.4461249822.

Adding to 540240432 its reverse (234042045), we get a palindrome (774282477).

The spelling of 540240432 in words is "five hundred forty million, two hundred forty thousand, four hundred thirty-two".