40411663 has 4 divisors (see below), whose sum is σ = 40463800. Its totient is φ = 40359528.

The previous prime is 40411661. The next prime is 40411673. The reversal of 40411663 is 36611404.

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 40411663 - 2¹ = 40411661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40411661) 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 3 ways as a sum of consecutive naturals, for example, 24888 + ... + 26461.

It is an arithmetic number, because the mean of its divisors is an integer number (10115950).

Almost surely, 2^40411663 is an apocalyptic number.

40411663 is a deficient number, since it is larger than the sum of its proper divisors (52137).

40411663 is an equidigital number, since it uses as much as digits as its factorization.

40411663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52136.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 40411663 is about 6357.0168318166. The cubic root of 40411663 is about 343.1644104663.

The spelling of 40411663 in words is "forty million, four hundred eleven thousand, six hundred sixty-three".