63130240 has 32 divisors (see below), whose sum is σ = 150922260. Its totient is φ = 25251840.

The previous prime is 63130237. The next prime is 63130241. The reversal of 63130240 is 4203136.

It can be written as a sum of positive squares in 2 ways, for example, as 63107136 + 23104 = 7944^2 + 152^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (63130241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48681 + ... + 49960.

Almost surely, 2^63130240 is an apocalyptic number.

It is an amenable number.

63130240 is an abundant number, since it is smaller than the sum of its proper divisors (87792020).

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

63130240 is an equidigital number, since it uses as much as digits as its factorization.

63130240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98660 (or 98648 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 63130240 is about 7945.4540461826. The cubic root of 63130240 is about 398.1797290998.

Adding to 63130240 its reverse (4203136), we get a palindrome (67333376).

The spelling of 63130240 in words is "sixty-three million, one hundred thirty thousand, two hundred forty".