40400975 has 6 divisors (see below), whose sum is σ = 50097240. Its totient is φ = 32320760.

The previous prime is 40400911. The next prime is 40400977. The reversal of 40400975 is 57900404.

40400975 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40400975 - 2⁶ = 40400911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40400977) 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 5 ways as a sum of consecutive naturals, for example, 807995 + ... + 808044.

It is an arithmetic number, because the mean of its divisors is an integer number (8349540).

Almost surely, 2^40400975 is an apocalyptic number.

40400975 is a deficient number, since it is larger than the sum of its proper divisors (9696265).

40400975 is a wasteful number, since it uses less digits than its factorization.

40400975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616049 (or 1616044 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 40400975 is about 6356.1761303476. The cubic root of 40400975 is about 343.1341546413.

The spelling of 40400975 in words is "forty million, four hundred thousand, nine hundred seventy-five".