40439375 has 20 divisors (see below), whose sum is σ = 51171120. Its totient is φ = 31944000.

The previous prime is 40439341. The next prime is 40439383. The reversal of 40439375 is 57393404.

40439375 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 40439375 - 2¹⁰ = 40438351 is a prime.

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 19 ways as a sum of consecutive naturals, for example, 55262 + ... + 55988.

It is an arithmetic number, because the mean of its divisors is an integer number (2558556).

Almost surely, 2^40439375 is an apocalyptic number.

40439375 is a deficient number, since it is larger than the sum of its proper divisors (10731745).

40439375 is an frugal number, since it uses more digits than its factorization.

40439375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 40439375 is about 6359.1960969921. The cubic root of 40439375 is about 343.2428333647.

The spelling of 40439375 in words is "forty million, four hundred thirty-nine thousand, three hundred seventy-five".