30642760940 has 24 divisors (see below), whose sum is σ = 70199780112. Its totient is φ = 11142822080.

The previous prime is 30642760913. The next prime is 30642760949. The reversal of 30642760940 is 4906724603.

It is not an unprimeable number, because it can be changed into a prime (30642760949) 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 7 ways as a sum of consecutive naturals, for example, 69642419 + ... + 69642858.

It is an arithmetic number, because the mean of its divisors is an integer number (2924990838).

Almost surely, 2^30642760940 is an apocalyptic number.

It is an amenable number.

30642760940 is an abundant number, since it is smaller than the sum of its proper divisors (39557019172).

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

30642760940 is a wasteful number, since it uses less digits than its factorization.

30642760940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139285297 (or 139285295 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 41.

The spelling of 30642760940 in words is "thirty billion, six hundred forty-two million, seven hundred sixty thousand, nine hundred forty".