40265939 has 16 divisors (see below), whose sum is σ = 48218112. Its totient is φ = 32876448.

The previous prime is 40265933. The next prime is 40265957. The reversal of 40265939 is 93956204.

40265939 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 40265939 - 2²⁰ = 39217363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40265933) 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, 61337 + ... + 61989.

It is an arithmetic number, because the mean of its divisors is an integer number (3013632).

Almost surely, 2^40265939 is an apocalyptic number.

40265939 is a deficient number, since it is larger than the sum of its proper divisors (7952173).

40265939 is a wasteful number, since it uses less digits than its factorization.

40265939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 40265939 is about 6345.5448150651. The cubic root of 40265939 is about 342.7514313400.

The spelling of 40265939 in words is "forty million, two hundred sixty-five thousand, nine hundred thirty-nine".