63345020 has 48 divisors (see below), whose sum is σ = 138119520. Its totient is φ = 24385536.

The previous prime is 63345001. The next prime is 63345047. The reversal of 63345020 is 2054336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62276 + ... + 63284.

It is an arithmetic number, because the mean of its divisors is an integer number (2877490).

Almost surely, 2^63345020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63345020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69059760).

63345020 is an abundant number, since it is smaller than the sum of its proper divisors (74774500).

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

63345020 is a wasteful number, since it uses less digits than its factorization.

63345020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 63345020 is about 7958.9584745744. The cubic root of 63345020 is about 398.6307767504.

Adding to 63345020 its reverse (2054336), we get a palindrome (65399356).

The spelling of 63345020 in words is "sixty-three million, three hundred forty-five thousand, twenty".