30630644244 has 36 divisors (see below), whose sum is σ = 79315940340. Its totient is φ = 9961184640.

The previous prime is 30630644153. The next prime is 30630644267. The reversal of 30630644244 is 44244603603.

30630644244 is a `hidden beast` number, since 3 + 0 + 6 + 3 + 0 + 644 + 2 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15944112900 + 14686531344 = 126270^2 + 121188^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 30630644199 and 30630644208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10374759 + ... + 10377710.

It is an arithmetic number, because the mean of its divisors is an integer number (2203220565).

Almost surely, 2^30630644244 is an apocalyptic number.

It is an amenable number.

30630644244 is an abundant number, since it is smaller than the sum of its proper divisors (48685296096).

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

30630644244 is a wasteful number, since it uses less digits than its factorization.

30630644244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20752520 (or 20752515 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

The spelling of 30630644244 in words is "thirty billion, six hundred thirty million, six hundred forty-four thousand, two hundred forty-four".