40385073 has 8 divisors (see below), whose sum is σ = 54258336. Its totient is φ = 26717600.

The previous prime is 40385071. The next prime is 40385113. The reversal of 40385073 is 37058304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40385073 - 2¹ = 40385071 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40385073.

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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50988 + ... + 51773.

It is an arithmetic number, because the mean of its divisors is an integer number (6782292).

Almost surely, 2^40385073 is an apocalyptic number.

It is an amenable number.

40385073 is a deficient number, since it is larger than the sum of its proper divisors (13873263).

40385073 is a wasteful number, since it uses less digits than its factorization.

40385073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102895.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 40385073 is about 6354.9250979063. The cubic root of 40385073 is about 343.0891290333.

The spelling of 40385073 in words is "forty million, three hundred eighty-five thousand, seventy-three".