30683789240 has 128 divisors (see below), whose sum is σ = 75535588800. Its totient is φ = 11149332480.

The previous prime is 30683789233. The next prime is 30683789249. The reversal of 30683789240 is 4298738603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30683789249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32607170 + ... + 32608110.

Almost surely, 2^30683789240 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 30683789240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37767794400).

30683789240 is an abundant number, since it is smaller than the sum of its proper divisors (44851799560).

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

30683789240 is a wasteful number, since it uses less digits than its factorization.

30683789240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897 (or 1893 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 30683789240 in words is "thirty billion, six hundred eighty-three million, seven hundred eighty-nine thousand, two hundred forty".