63144460 has 48 divisors (see below), whose sum is σ = 141190560. Its totient is φ = 23639040.

The previous prime is 63144451. The next prime is 63144461. The reversal of 63144460 is 6444136.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (63144461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77455 + ... + 78265.

It is an arithmetic number, because the mean of its divisors is an integer number (2941470).

Almost surely, 2^63144460 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 63144460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70595280).

63144460 is an abundant number, since it is smaller than the sum of its proper divisors (78046100).

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

63144460 is a wasteful number, since it uses less digits than its factorization.

63144460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 63144460 is about 7946.3488471121. The cubic root of 63144460 is about 398.2096233347.

Adding to 63144460 its reverse (6444136), we get a palindrome (69588596).

The spelling of 63144460 in words is "sixty-three million, one hundred forty-four thousand, four hundred sixty".