40428485140 has 12 divisors (see below), whose sum is σ = 84899818836. Its totient is φ = 16171394048.

The previous prime is 40428485137. The next prime is 40428485159. The reversal of 40428485140 is 4158482404.

40428485140 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 2 ways, for example, as 4129090564 + 36299394576 = 64258^2 + 190524^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40428485093 and 40428485102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010712109 + ... + 1010712148.

It is an arithmetic number, because the mean of its divisors is an integer number (7074984903).

Almost surely, 2^40428485140 is an apocalyptic number.

It is an amenable number.

40428485140 is an abundant number, since it is smaller than the sum of its proper divisors (44471333696).

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

40428485140 is a wasteful number, since it uses less digits than its factorization.

40428485140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021424266 (or 2021424264 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 40.

The spelling of 40428485140 in words is "forty billion, four hundred twenty-eight million, four hundred eighty-five thousand, one hundred forty".