63918442 has 12 divisors (see below), whose sum is σ = 111531330. Its totient is φ = 27393576.

The previous prime is 63918431. The next prime is 63918457. The reversal of 63918442 is 24481936.

It can be written as a sum of positive squares in only one way, i.e., 39425841 + 24492601 = 6279^2 + 4949^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 326017 + ... + 326212.

Almost surely, 2^63918442 is an apocalyptic number.

63918442 is a deficient number, since it is larger than the sum of its proper divisors (47612888).

63918442 is a wasteful number, since it uses less digits than its factorization.

63918442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652245 (or 652238 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 63918442 is about 7994.9010000124. The cubic root of 63918442 is about 399.8300152732.

The spelling of 63918442 in words is "sixty-three million, nine hundred eighteen thousand, four hundred forty-two".