63440444 has 12 divisors (see below), whose sum is σ = 111081600. Its totient is φ = 31702848.

The previous prime is 63440401. The next prime is 63440471. The reversal of 63440444 is 44404436.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 7397 + ... + 13475.

It is an arithmetic number, because the mean of its divisors is an integer number (9256800).

Almost surely, 2^63440444 is an apocalyptic number.

It is an amenable number.

63440444 is a deficient number, since it is larger than the sum of its proper divisors (47641156).

63440444 is a wasteful number, since it uses less digits than its factorization.

63440444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8692 (or 8690 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

The square root of 63440444 is about 7964.9509728560. The cubic root of 63440444 is about 398.8308443505.

The spelling of 63440444 in words is "sixty-three million, four hundred forty thousand, four hundred forty-four".