63440105 has 8 divisors (see below), whose sum is σ = 78584064. Its totient is φ = 49114800.

The previous prime is 63440087. The next prime is 63440119. The reversal of 63440105 is 50104436.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63440105 - 2¹⁶ = 63374569 is a prime.

It is a super-2 number, since 2×63440105² = 8049293844822050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 204491 + ... + 204800.

It is an arithmetic number, because the mean of its divisors is an integer number (9823008).

Almost surely, 2^63440105 is an apocalyptic number.

It is an amenable number.

63440105 is a deficient number, since it is larger than the sum of its proper divisors (15143959).

63440105 is a wasteful number, since it uses less digits than its factorization.

63440105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409327.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 63440105 is about 7964.9296920940. The cubic root of 63440105 is about 398.8301339525.

The spelling of 63440105 in words is "sixty-three million, four hundred forty thousand, one hundred five".