40661095 has 4 divisors (see below), whose sum is σ = 48793320. Its totient is φ = 32528872.

The previous prime is 40661087. The next prime is 40661099. The reversal of 40661095 is 59016604.

40661095 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 is a cyclic number.

It is not a de Polignac number, because 40661095 - 2³ = 40661087 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40661099) 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, 4066105 + ... + 4066114.

It is an arithmetic number, because the mean of its divisors is an integer number (12198330).

Almost surely, 2^40661095 is an apocalyptic number.

40661095 is a deficient number, since it is larger than the sum of its proper divisors (8132225).

40661095 is an equidigital number, since it uses as much as digits as its factorization.

40661095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8132224.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 40661095 is about 6376.6052880824. The cubic root of 40661095 is about 343.8689981397.

Adding to 40661095 its reverse (59016604), we get a palindrome (99677699).

The spelling of 40661095 in words is "forty million, six hundred sixty-one thousand, ninety-five".