40469691 has 8 divisors (see below), whose sum is σ = 54115600. Its totient is φ = 26901792.

The previous prime is 40469683. The next prime is 40469701. The reversal of 40469691 is 19696404.

40469691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40469691 - 2³ = 40469683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40469621) 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 7 ways as a sum of consecutive naturals, for example, 18280 + ... + 20373.

It is an arithmetic number, because the mean of its divisors is an integer number (6764450).

Almost surely, 2^40469691 is an apocalyptic number.

40469691 is a deficient number, since it is larger than the sum of its proper divisors (13645909).

40469691 is a wasteful number, since it uses less digits than its factorization.

40469691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39005.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 40469691 is about 6361.5792850518. The cubic root of 40469691 is about 343.3285843647.

The spelling of 40469691 in words is "forty million, four hundred sixty-nine thousand, six hundred ninety-one".