40171473 has 6 divisors (see below), whose sum is σ = 58025474. Its totient is φ = 26780976.

The previous prime is 40171471. The next prime is 40171487. The reversal of 40171473 is 37417104.

It can be written as a sum of positive squares in only one way, i.e., 38340864 + 1830609 = 6192^2 + 1353^2 .

It is not a de Polignac number, because 40171473 - 2¹ = 40171471 is a prime.

It is a super-2 number, since 2×40171473² = 3227494485979458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40171471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2231740 + ... + 2231757.

Almost surely, 2^40171473 is an apocalyptic number.

It is an amenable number.

40171473 is a deficient number, since it is larger than the sum of its proper divisors (17854001).

40171473 is a wasteful number, since it uses less digits than its factorization.

40171473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4463503 (or 4463500 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 40171473 is about 6338.0969541338. The cubic root of 40171473 is about 342.4831838583.

Adding to 40171473 its reverse (37417104), we get a palindrome (77588577).

The spelling of 40171473 in words is "forty million, one hundred seventy-one thousand, four hundred seventy-three".