41405999 has 8 divisors (see below), whose sum is σ = 43953840. Its totient is φ = 38870656.

The previous prime is 41405989. The next prime is 41406019. The reversal of 41405999 is 99950414.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 41405999 - 2¹² = 41401903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41405989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4217 + ... + 10029.

It is an arithmetic number, because the mean of its divisors is an integer number (5494230).

Almost surely, 2^41405999 is an apocalyptic number.

41405999 is a deficient number, since it is larger than the sum of its proper divisors (2547841).

41405999 is a wasteful number, since it uses less digits than its factorization.

41405999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6249.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 41405999 is about 6434.7493346672. The cubic root of 41405999 is about 345.9561768592.

The spelling of 41405999 in words is "forty-one million, four hundred five thousand, nine hundred ninety-nine".