63642258 has 24 divisors (see below), whose sum is σ = 139234368. Its totient is φ = 21007512.

The previous prime is 63642251. The next prime is 63642259. The reversal of 63642258 is 85224636.

63642258 is a `hidden beast` number, since 6 + 3 + 642 + 2 + 5 + 8 = 666.

63642258 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63642251) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 15310 + ... + 19017.

It is an arithmetic number, because the mean of its divisors is an integer number (5801432).

Almost surely, 2^63642258 is an apocalyptic number.

63642258 is an abundant number, since it is smaller than the sum of its proper divisors (75592110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63642258 is a wasteful number, since it uses less digits than its factorization.

63642258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34438 (or 34435 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 63642258 is about 7977.6097924128. The cubic root of 63642258 is about 399.2533111735.

The spelling of 63642258 in words is "sixty-three million, six hundred forty-two thousand, two hundred fifty-eight".