40641611 has 8 divisors (see below), whose sum is σ = 43129440. Its totient is φ = 38164608.

The previous prime is 40641593. The next prime is 40641613. The reversal of 40641611 is 11614604.

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 40641611 - 2⁶ = 40641547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40641613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5825 + ... + 10733.

It is an arithmetic number, because the mean of its divisors is an integer number (5391180).

Almost surely, 2^40641611 is an apocalyptic number.

40641611 is a deficient number, since it is larger than the sum of its proper divisors (2487829).

40641611 is a wasteful number, since it uses less digits than its factorization.

40641611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5413.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 40641611 is about 6375.0773328643. The cubic root of 40641611 is about 343.8140642690.

The spelling of 40641611 in words is "forty million, six hundred forty-one thousand, six hundred eleven".