40441663 has 2 divisors, whose sum is σ = 40441664. Its totient is φ = 40441662.

The previous prime is 40441637. The next prime is 40441697. The reversal of 40441663 is 36614404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40441663 - 2¹⁷ = 40310591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40441363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20220831 + 20220832.

It is an arithmetic number, because the mean of its divisors is an integer number (20220832).

Almost surely, 2^40441663 is an apocalyptic number.

40441663 is a deficient number, since it is larger than the sum of its proper divisors (1).

40441663 is an equidigital number, since it uses as much as digits as its factorization.

40441663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 40441663 is about 6359.3759914004. The cubic root of 40441663 is about 343.2493066331.

The spelling of 40441663 in words is "forty million, four hundred forty-one thousand, six hundred sixty-three".