40355128 has 32 divisors (see below), whose sum is σ = 82800000. Its totient is φ = 18286560.

The previous prime is 40355089. The next prime is 40355129. The reversal of 40355128 is 82155304.

40355128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40355096 and 40355105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40355129) by changing a digit.

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, 43453 + ... + 44371.

It is an arithmetic number, because the mean of its divisors is an integer number (2587500).

Almost surely, 2^40355128 is an apocalyptic number.

It is an amenable number.

40355128 is an abundant number, since it is smaller than the sum of its proper divisors (42444872).

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

40355128 is a wasteful number, since it uses less digits than its factorization.

40355128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435 (or 1431 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 40355128 is about 6352.5686143481. The cubic root of 40355128 is about 343.0043093748.

The spelling of 40355128 in words is "forty million, three hundred fifty-five thousand, one hundred twenty-eight".