40493728045 has 8 divisors (see below), whose sum is σ = 48773116440. Its totient is φ = 32274553920.

The previous prime is 40493728031. The next prime is 40493728049. The reversal of 40493728045 is 54082739404.

It is a happy number.

40493728045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 258984649 + 40234743396 = 16093^2 + 200586^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40493728045 - 2⁷ = 40493727917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40493727986 and 40493728004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40493728049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15052086 + ... + 15054775.

It is an arithmetic number, because the mean of its divisors is an integer number (6096639555).

Almost surely, 2^40493728045 is an apocalyptic number.

It is an amenable number.

40493728045 is a deficient number, since it is larger than the sum of its proper divisors (8279388395).

40493728045 is a wasteful number, since it uses less digits than its factorization.

40493728045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30107135.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 40493728045 in words is "forty billion, four hundred ninety-three million, seven hundred twenty-eight thousand, forty-five".