30384709640 has 16 divisors (see below), whose sum is σ = 68365596780. Its totient is φ = 12153883840.

The previous prime is 30384709561. The next prime is 30384709651. The reversal of 30384709640 is 4690748303.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30226604164 + 158105476 = 173858^2 + 12574^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30384709591 and 30384709600.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379808831 + ... + 379808910.

Almost surely, 2^30384709640 is an apocalyptic number.

It is an amenable number.

30384709640 is an abundant number, since it is smaller than the sum of its proper divisors (37980887140).

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

30384709640 is a wasteful number, since it uses less digits than its factorization.

30384709640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759617752 (or 759617748 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 30384709640 in words is "thirty billion, three hundred eighty-four million, seven hundred nine thousand, six hundred forty".