40258905 has 16 divisors (see below), whose sum is σ = 64696320. Its totient is φ = 21377408.

The previous prime is 40258877. The next prime is 40258909. The reversal of 40258905 is 50985204.

40258905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40258905 - 2¹⁰ = 40257881 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (40258909) 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 15 ways as a sum of consecutive naturals, for example, 2265 + ... + 9254.

It is an arithmetic number, because the mean of its divisors is an integer number (4043520).

Almost surely, 2^40258905 is an apocalyptic number.

It is an amenable number.

40258905 is a deficient number, since it is larger than the sum of its proper divisors (24437415).

40258905 is a wasteful number, since it uses less digits than its factorization.

40258905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11760.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 40258905 is about 6344.9905437282. The cubic root of 40258905 is about 342.7314719233.

The spelling of 40258905 in words is "forty million, two hundred fifty-eight thousand, nine hundred five".