40544785 has 16 divisors (see below), whose sum is σ = 51042816. Its totient is φ = 30881088.

The previous prime is 40544773. The next prime is 40544789. The reversal of 40544785 is 58744504.

It is not a de Polignac number, because 40544785 - 2¹¹ = 40542737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40544789) 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 15 ways as a sum of consecutive naturals, for example, 6364 + ... + 11026.

It is an arithmetic number, because the mean of its divisors is an integer number (3190176).

Almost surely, 2^40544785 is an apocalyptic number.

It is an amenable number.

40544785 is a deficient number, since it is larger than the sum of its proper divisors (10498031).

40544785 is a wasteful number, since it uses less digits than its factorization.

40544785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4752.

The product of its (nonzero) digits is 89600, while the sum is 37.

The square root of 40544785 is about 6367.4787003963. The cubic root of 40544785 is about 343.5408089197.

The spelling of 40544785 in words is "forty million, five hundred forty-four thousand, seven hundred eighty-five".