40045305540 has 48 divisors (see below), whose sum is σ = 118028272320. Its totient is φ = 10116708480.

The previous prime is 40045305539. The next prime is 40045305551. The reversal of 40045305540 is 4550354004.

40045305540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 40045305498 and 40045305507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17562591 + ... + 17564870.

It is an arithmetic number, because the mean of its divisors is an integer number (2458922340).

Almost surely, 2^40045305540 is an apocalyptic number.

It is an amenable number.

40045305540 is an abundant number, since it is smaller than the sum of its proper divisors (77982966780).

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

40045305540 is a wasteful number, since it uses less digits than its factorization.

40045305540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35127492 (or 35127490 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

Adding to 40045305540 its reverse (4550354004), we get a palindrome (44595659544).

The spelling of 40045305540 in words is "forty billion, forty-five million, three hundred five thousand, five hundred forty".