63345320 has 32 divisors (see below), whose sum is σ = 142921800. Its totient is φ = 25267968.

The previous prime is 63345313. The next prime is 63345329. The reversal of 63345320 is 2354336.

It can be written as a sum of positive squares in 4 ways, for example, as 54140164 + 9205156 = 7358^2 + 3034^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63345320.

It is not an unprimeable number, because it can be changed into a prime (63345329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13886 + ... + 17874.

Almost surely, 2^63345320 is an apocalyptic number.

It is an amenable number.

63345320 is an abundant number, since it is smaller than the sum of its proper divisors (79576480).

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

63345320 is a wasteful number, since it uses less digits than its factorization.

63345320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4397 (or 4393 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 63345320 is about 7958.9773212392. The cubic root of 63345320 is about 398.6314060503.

Adding to 63345320 its reverse (2354336), we get a palindrome (65699656).

The spelling of 63345320 in words is "sixty-three million, three hundred forty-five thousand, three hundred twenty".