540343440 has 320 divisors, whose sum is σ = 2291520000. Its totient is φ = 113965056.

The previous prime is 540343403. The next prime is 540343493. The reversal of 540343440 is 44343045.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 195186 + ... + 197934.

It is an arithmetic number, because the mean of its divisors is an integer number (7161000).

Almost surely, 2^540343440 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 540343440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1145760000).

540343440 is an abundant number, since it is smaller than the sum of its proper divisors (1751176560).

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

540343440 is a wasteful number, since it uses less digits than its factorization.

540343440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791 (or 2779 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 540343440 is about 23245.2885548878. The cubic root of 540343440 is about 814.4978853528.

Adding to 540343440 its reverse (44343045), we get a palindrome (584686485).

The spelling of 540343440 in words is "five hundred forty million, three hundred forty-three thousand, four hundred forty".