4540545540 has 144 divisors (see below), whose sum is σ = 14047488000. Its totient is φ = 1186907904.

The previous prime is 4540545523. The next prime is 4540545551. The reversal of 4540545540 is 455450454.

4540545540 is a `hidden beast` number, since 4 + 54 + 0 + 54 + 554 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4540545495 and 4540545504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2117709 + ... + 2119851.

It is an arithmetic number, because the mean of its divisors is an integer number (97552000).

Almost surely, 2^4540545540 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 4540545540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7023744000).

4540545540 is an abundant number, since it is smaller than the sum of its proper divisors (9506942460).

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

4540545540 is a wasteful number, since it uses less digits than its factorization.

4540545540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386 (or 2381 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 36.

The square root of 4540545540 is about 67383.5702526959. The cubic root of 4540545540 is about 1655.9072665638.

Adding to 4540545540 its reverse (455450454), we get a palindrome (4995995994).

The spelling of 4540545540 in words is "four billion, five hundred forty million, five hundred forty-five thousand, five hundred forty".