40828909428 has 36 divisors (see below), whose sum is σ = 104228264868. Its totient is φ = 13474886400.

The previous prime is 40828909427. The next prime is 40828909439. The reversal of 40828909428 is 82490982804.

It can be written as a sum of positive squares in 2 ways, for example, as 16414221924 + 24414687504 = 128118^2 + 156252^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40828909421) 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 11 ways as a sum of consecutive naturals, for example, 5610901 + ... + 5618172.

Almost surely, 2^40828909428 is an apocalyptic number.

It is an amenable number.

40828909428 is an abundant number, since it is smaller than the sum of its proper divisors (63399355440).

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

40828909428 is a wasteful number, since it uses less digits than its factorization.

40828909428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11229184 (or 11229179 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 40828909428 in words is "forty billion, eight hundred twenty-eight million, nine hundred nine thousand, four hundred twenty-eight".