63642260 has 24 divisors (see below), whose sum is σ = 145799136. Its totient is φ = 23142560.

The previous prime is 63642259. The next prime is 63642281. The reversal of 63642260 is 6224636.

63642260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 144422 + ... + 144861.

It is an arithmetic number, because the mean of its divisors is an integer number (6074964).

Almost surely, 2^63642260 is an apocalyptic number.

It is an amenable number.

63642260 is an abundant number, since it is smaller than the sum of its proper divisors (82156876).

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

63642260 is a wasteful number, since it uses less digits than its factorization.

63642260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289303 (or 289301 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 63642260 is about 7977.6099177636. The cubic root of 63642260 is about 399.2533153557.

Adding to 63642260 its reverse (6224636), we get a palindrome (69866896).

The spelling of 63642260 in words is "sixty-three million, six hundred forty-two thousand, two hundred sixty".