40707928 has 32 divisors (see below), whose sum is σ = 82708560. Its totient is φ = 18708480.

The previous prime is 40707917. The next prime is 40707943. The reversal of 40707928 is 82970704.

It is a happy number.

40707928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2368 + ... + 9328.

Almost surely, 2^40707928 is an apocalyptic number.

It is an amenable number.

40707928 is an abundant number, since it is smaller than the sum of its proper divisors (42000632).

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

40707928 is a wasteful number, since it uses less digits than its factorization.

40707928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7027 (or 7023 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 40707928 is about 6380.2764830374. The cubic root of 40707928 is about 344.0009689895. Note that the first 3 decimals are identical.

The spelling of 40707928 in words is "forty million, seven hundred seven thousand, nine hundred twenty-eight".