30643382740 has 48 divisors (see below), whose sum is σ = 65635194240. Its totient is φ = 12014764160.

The previous prime is 30643382681. The next prime is 30643382741. The reversal of 30643382740 is 4728334603.

It is a junction number, because it is equal to n+sod(n) for n = 30643382693 and 30643382702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30643382741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183291 + ... + 308029.

It is an arithmetic number, because the mean of its divisors is an integer number (1367399880).

Almost surely, 2^30643382740 is an apocalyptic number.

It is an amenable number.

30643382740 is an abundant number, since it is smaller than the sum of its proper divisors (34991811500).

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

30643382740 is a wasteful number, since it uses less digits than its factorization.

30643382740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124992 (or 124990 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 40.

The spelling of 30643382740 in words is "thirty billion, six hundred forty-three million, three hundred eighty-two thousand, seven hundred forty".