40469687 has 4 divisors (see below), whose sum is σ = 41233320. Its totient is φ = 39706056.

The previous prime is 40469683. The next prime is 40469701. The reversal of 40469687 is 78696404.

40469687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40469687 - 2² = 40469683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40469683) 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 3 ways as a sum of consecutive naturals, for example, 381737 + ... + 381842.

It is an arithmetic number, because the mean of its divisors is an integer number (10308330).

Almost surely, 2^40469687 is an apocalyptic number.

40469687 is a deficient number, since it is larger than the sum of its proper divisors (763633).

40469687 is an equidigital number, since it uses as much as digits as its factorization.

40469687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763632.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 40469687 is about 6361.5789706644. The cubic root of 40469687 is about 343.3285730533.

The spelling of 40469687 in words is "forty million, four hundred sixty-nine thousand, six hundred eighty-seven".