40469429 has 16 divisors (see below), whose sum is σ = 54337920. Its totient is φ = 29108160.

The previous prime is 40469417. The next prime is 40469447. The reversal of 40469429 is 92496404.

40469429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40469429 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40469392 and 40469401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40469459) 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 15 ways as a sum of consecutive naturals, for example, 19214 + ... + 21215.

It is an arithmetic number, because the mean of its divisors is an integer number (3396120).

Almost surely, 2^40469429 is an apocalyptic number.

It is an amenable number.

40469429 is a deficient number, since it is larger than the sum of its proper divisors (13868491).

40469429 is a wasteful number, since it uses less digits than its factorization.

40469429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40460.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 40469429 is about 6361.5586926476. The cubic root of 40469429 is about 343.3278434622.

The spelling of 40469429 in words is "forty million, four hundred sixty-nine thousand, four hundred twenty-nine".