44640163 has 2 divisors, whose sum is σ = 44640164. Its totient is φ = 44640162.

The previous prime is 44640161. The next prime is 44640173. The reversal of 44640163 is 36104644.

It is a happy number.

44640163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44640163 - 2¹ = 44640161 is a prime.

Together with 44640161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (44640161) 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 as a sum of consecutive naturals, namely, 22320081 + 22320082.

It is an arithmetic number, because the mean of its divisors is an integer number (22320082).

Almost surely, 2^44640163 is an apocalyptic number.

44640163 is a deficient number, since it is larger than the sum of its proper divisors (1).

44640163 is an equidigital number, since it uses as much as digits as its factorization.

44640163 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 44640163 is about 6681.3294335783. The cubic root of 44640163 is about 354.7387166869.

The spelling of 44640163 in words is "forty-four million, six hundred forty thousand, one hundred sixty-three".