40997169 has 6 divisors (see below), whose sum is σ = 59218146. Its totient is φ = 27331440.

The previous prime is 40997161. The next prime is 40997197. The reversal of 40997169 is 96179904.

It can be written as a sum of positive squares in only one way, i.e., 30107169 + 10890000 = 5487^2 + 3300^2 .

It is not a de Polignac number, because 40997169 - 2³ = 40997161 is a prime.

It is a super-3 number, since 3×40997169³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (40997161) 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 5 ways as a sum of consecutive naturals, for example, 2277612 + ... + 2277629.

It is an arithmetic number, because the mean of its divisors is an integer number (9869691).

Almost surely, 2^40997169 is an apocalyptic number.

It is an amenable number.

40997169 is a deficient number, since it is larger than the sum of its proper divisors (18220977).

40997169 is a wasteful number, since it uses less digits than its factorization.

40997169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4555247 (or 4555244 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 40997169 is about 6402.9031696567. The cubic root of 40997169 is about 344.8137873491.

The spelling of 40997169 in words is "forty million, nine hundred ninety-seven thousand, one hundred sixty-nine".