40163697 has 12 divisors (see below), whose sum is σ = 66302080. Its totient is φ = 22950648.

The previous prime is 40163687. The next prime is 40163699. The reversal of 40163697 is 79636104.

40163697 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 40163697 - 2¹⁰ = 40162673 is a prime.

It is a super-2 number, since 2×40163697² = 3226245113415618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40163699) 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, 318697 + ... + 318822.

Almost surely, 2^40163697 is an apocalyptic number.

It is an amenable number.

40163697 is a deficient number, since it is larger than the sum of its proper divisors (26138383).

40163697 is a wasteful number, since it uses less digits than its factorization.

40163697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637532 (or 637529 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 40163697 is about 6337.4834911028. The cubic root of 40163697 is about 342.4610842530.

The spelling of 40163697 in words is "forty million, one hundred sixty-three thousand, six hundred ninety-seven".