40947999 has 8 divisors (see below), whose sum is σ = 54662832. Its totient is φ = 27265920.

The previous prime is 40947989. The next prime is 40948001. The reversal of 40947999 is 99974904.

40947999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40947999 - 2²⁵ = 7393567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40947919) 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 7 ways as a sum of consecutive naturals, for example, 5104 + ... + 10389.

It is an arithmetic number, because the mean of its divisors is an integer number (6832854).

Almost surely, 2^40947999 is an apocalyptic number.

40947999 is a deficient number, since it is larger than the sum of its proper divisors (13714833).

40947999 is a wasteful number, since it uses less digits than its factorization.

40947999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16377.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 40947999 is about 6399.0623531889. The cubic root of 40947999 is about 344.6758812693.

The spelling of 40947999 in words is "forty million, nine hundred forty-seven thousand, nine hundred ninety-nine".