40385079 has 48 divisors (see below), whose sum is σ = 71165952. Its totient is φ = 21567744.

The previous prime is 40385071. The next prime is 40385113. The reversal of 40385079 is 97058304.

40385079 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 40385079 - 2³ = 40385071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40385071) 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 47 ways as a sum of consecutive naturals, for example, 67807 + ... + 68399.

It is an arithmetic number, because the mean of its divisors is an integer number (1482624).

Almost surely, 2^40385079 is an apocalyptic number.

40385079 is a deficient number, since it is larger than the sum of its proper divisors (30780873).

40385079 is a wasteful number, since it uses less digits than its factorization.

40385079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 40385079 is about 6354.9255699811. The cubic root of 40385079 is about 343.0891460242.

The spelling of 40385079 in words is "forty million, three hundred eighty-five thousand, seventy-nine".