40229005 has 4 divisors (see below), whose sum is σ = 48274812. Its totient is φ = 32183200.

The previous prime is 40228999. The next prime is 40229009. The reversal of 40229005 is 50092204.

It is a happy number.

40229005 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 can be written as a sum of positive squares in 2 ways, for example, as 4384836 + 35844169 = 2094^2 + 5987^2 .

It is not a de Polignac number, because 40229005 - 2⁹ = 40228493 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 (40229009) 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, 4022896 + ... + 4022905.

It is an arithmetic number, because the mean of its divisors is an integer number (12068703).

Almost surely, 2^40229005 is an apocalyptic number.

It is an amenable number.

40229005 is a deficient number, since it is larger than the sum of its proper divisors (8045807).

40229005 is an equidigital number, since it uses as much as digits as its factorization.

40229005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8045806.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 40229005 is about 6342.6339165996. The cubic root of 40229005 is about 342.6466028406.

The spelling of 40229005 in words is "forty million, two hundred twenty-nine thousand, five".