40671545 has 8 divisors (see below), whose sum is σ = 49020360. Its totient is φ = 32394240.

The previous prime is 40671529. The next prime is 40671557. The reversal of 40671545 is 54517604.

40671545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 20214016 + 20457529 = 4496^2 + 4523^2 .

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

It is not a de Polignac number, because 40671545 - 2⁴ = 40671529 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16616 + ... + 18905.

It is an arithmetic number, because the mean of its divisors is an integer number (6127545).

Almost surely, 2^40671545 is an apocalyptic number.

It is an amenable number.

40671545 is a deficient number, since it is larger than the sum of its proper divisors (8348815).

40671545 is a wasteful number, since it uses less digits than its factorization.

40671545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35755.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 40671545 is about 6377.4246369518. The cubic root of 40671545 is about 343.8984540052.

The spelling of 40671545 in words is "forty million, six hundred seventy-one thousand, five hundred forty-five".