63444374 has 32 divisors (see below), whose sum is σ = 116121600. Its totient is φ = 25377408.

The previous prime is 63444317. The next prime is 63444379. The reversal of 63444374 is 47344436.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63444379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29177 + ... + 31275.

It is an arithmetic number, because the mean of its divisors is an integer number (3628800).

Almost surely, 2^63444374 is an apocalyptic number.

63444374 is a deficient number, since it is larger than the sum of its proper divisors (52677226).

63444374 is a wasteful number, since it uses less digits than its factorization.

63444374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252.

The product of its digits is 96768, while the sum is 35.

The square root of 63444374 is about 7965.1976748854. The cubic root of 63444374 is about 398.8390797534.

The spelling of 63444374 in words is "sixty-three million, four hundred forty-four thousand, three hundred seventy-four".