40545043 has 12 divisors (see below), whose sum is σ = 50933680. Its totient is φ = 31592880.

The previous prime is 40545019. The next prime is 40545061. The reversal of 40545043 is 34054504.

40545043 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 40545043 - 2¹³ = 40536851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40544999 and 40545017.

It is not an unprimeable number, because it can be changed into a prime (40545073) 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 11 ways as a sum of consecutive naturals, for example, 23088 + ... + 24781.

Almost surely, 2^40545043 is an apocalyptic number.

40545043 is a deficient number, since it is larger than the sum of its proper divisors (10388637).

40545043 is a wasteful number, since it uses less digits than its factorization.

40545043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47898 (or 47887 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 40545043 is about 6367.4989595602. The cubic root of 40545043 is about 343.5415376064.

Adding to 40545043 its reverse (34054504), we get a palindrome (74599547).

The spelling of 40545043 in words is "forty million, five hundred forty-five thousand, forty-three".