40445471 has 16 divisors (see below), whose sum is σ = 46656000. Its totient is φ = 34675200.

The previous prime is 40445467. The next prime is 40445473. The reversal of 40445471 is 17454404.

It is a happy number.

40445471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40445471 - 2² = 40445467 is a prime.

It is a super-3 number, since 3×40445471³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40445473) 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 15 ways as a sum of consecutive naturals, for example, 89855 + ... + 90303.

It is an arithmetic number, because the mean of its divisors is an integer number (2916000).

Almost surely, 2^40445471 is an apocalyptic number.

40445471 is a deficient number, since it is larger than the sum of its proper divisors (6210529).

40445471 is a wasteful number, since it uses less digits than its factorization.

40445471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 40445471 is about 6359.6753847976. The cubic root of 40445471 is about 343.2600797834.

Adding to 40445471 its reverse (17454404), we get a palindrome (57899875).

The spelling of 40445471 in words is "forty million, four hundred forty-five thousand, four hundred seventy-one".