30927512940 has 48 divisors (see below), whose sum is σ = 88230951648. Its totient is φ = 8091725824.

The previous prime is 30927512911. The next prime is 30927512947. The reversal of 30927512940 is 4921572903.

It is a super-2 number, since 2×30927512940² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30927512892 and 30927512901.

It is not an unprimeable number, because it can be changed into a prime (30927512947) 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, 4859637 + ... + 4865996.

It is an arithmetic number, because the mean of its divisors is an integer number (1838144826).

Almost surely, 2^30927512940 is an apocalyptic number.

30927512940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30927512940 is an abundant number, since it is smaller than the sum of its proper divisors (57303438708).

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

30927512940 is a wasteful number, since it uses less digits than its factorization.

30927512940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9725698 (or 9725696 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The spelling of 30927512940 in words is "thirty billion, nine hundred twenty-seven million, five hundred twelve thousand, nine hundred forty".