45020043540 has 48 divisors (see below), whose sum is σ = 140062359360. Its totient is φ = 12005344800.

The previous prime is 45020043527. The next prime is 45020043547. The reversal of 45020043540 is 4534002054.

45020043540 is a `hidden beast` number, since 450 + 200 + 4 + 3 + 5 + 4 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45020043547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41684686 + ... + 41685765.

It is an arithmetic number, because the mean of its divisors is an integer number (2917965820).

Almost surely, 2^45020043540 is an apocalyptic number.

It is an amenable number.

45020043540 is an abundant number, since it is smaller than the sum of its proper divisors (95042315820).

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

45020043540 is a wasteful number, since it uses less digits than its factorization.

45020043540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83370469 (or 83370461 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 45020043540 its reverse (4534002054), we get a palindrome (49554045594).

The spelling of 45020043540 in words is "forty-five billion, twenty million, forty-three thousand, five hundred forty".