30950031940 has 12 divisors (see below), whose sum is σ = 64995067116. Its totient is φ = 12380012768.

The previous prime is 30950031919. The next prime is 30950031947. The reversal of 30950031940 is 4913005903.

It can be written as a sum of positive squares in 2 ways, for example, as 4085510724 + 26864521216 = 63918^2 + 163904^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30950031896 and 30950031905.

It is not an unprimeable number, because it can be changed into a prime (30950031947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773750779 + ... + 773750818.

It is an arithmetic number, because the mean of its divisors is an integer number (5416255593).

Almost surely, 2^30950031940 is an apocalyptic number.

It is an amenable number.

30950031940 is an abundant number, since it is smaller than the sum of its proper divisors (34045035176).

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

30950031940 is a wasteful number, since it uses less digits than its factorization.

30950031940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547501606 (or 1547501604 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 34.

The spelling of 30950031940 in words is "thirty billion, nine hundred fifty million, thirty-one thousand, nine hundred forty".