63030440 has 64 divisors (see below), whose sum is σ = 159736320. Its totient is φ = 22176000.

The previous prime is 63030437. The next prime is 63030479. The reversal of 63030440 is 4403036.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11330 + ... + 15950.

It is an arithmetic number, because the mean of its divisors is an integer number (2495880).

Almost surely, 2^63030440 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 63030440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79868160).

63030440 is an abundant number, since it is smaller than the sum of its proper divisors (96705880).

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

63030440 is a wasteful number, since it uses less digits than its factorization.

63030440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4674 (or 4670 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 63030440 is about 7939.1712413828. The cubic root of 63030440 is about 397.9697964504.

Adding to 63030440 its reverse (4403036), we get a palindrome (67433476).

The spelling of 63030440 in words is "sixty-three million, thirty thousand, four hundred forty".