63642416 has 20 divisors (see below), whose sum is σ = 123867072. Its totient is φ = 31676736.

The previous prime is 63642409. The next prime is 63642431. The reversal of 63642416 is 61424636.

63642416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63642416² = 8100714228634112, which contains 22 as substring.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 5351 + ... + 12486.

Almost surely, 2^63642416 is an apocalyptic number.

It is an amenable number.

63642416 is a deficient number, since it is larger than the sum of its proper divisors (60224656).

63642416 is a wasteful number, since it uses less digits than its factorization.

63642416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18068 (or 18062 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 63642416 is about 7977.6196951221. The cubic root of 63642416 is about 399.2536415722.

The spelling of 63642416 in words is "sixty-three million, six hundred forty-two thousand, four hundred sixteen".