40439270 has 32 divisors (see below), whose sum is σ = 74995200. Its totient is φ = 15692256.

The previous prime is 40439219. The next prime is 40439281. The reversal of 40439270 is 7293404.

40439270 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 15 ways as a sum of consecutive naturals, for example, 65021 + ... + 65639.

It is an arithmetic number, because the mean of its divisors is an integer number (2343600).

Almost surely, 2^40439270 is an apocalyptic number.

40439270 is a deficient number, since it is larger than the sum of its proper divisors (34555930).

40439270 is a wasteful number, since it uses less digits than its factorization.

40439270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 40439270 is about 6359.1878412263. The cubic root of 40439270 is about 343.2425362901.

The spelling of 40439270 in words is "forty million, four hundred thirty-nine thousand, two hundred seventy".