41729909 has 16 divisors (see below), whose sum is σ = 48417600. Its totient is φ = 35634816.

The previous prime is 41729903. The next prime is 41729911. The reversal of 41729909 is 90992714.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 41729909 - 2¹² = 41725813 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41729903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8657 + ... + 12585.

It is an arithmetic number, because the mean of its divisors is an integer number (3026100).

Almost surely, 2^41729909 is an apocalyptic number.

It is an amenable number.

41729909 is a deficient number, since it is larger than the sum of its proper divisors (6687691).

41729909 is a wasteful number, since it uses less digits than its factorization.

41729909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4004.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 41729909 is about 6459.8691163212. The cubic root of 41729909 is about 346.8559476482.

The spelling of 41729909 in words is "forty-one million, seven hundred twenty-nine thousand, nine hundred nine".