30549448740 has 24 divisors (see below), whose sum is σ = 85538456640. Its totient is φ = 8146519648.

The previous prime is 30549448739. The next prime is 30549448747. The reversal of 30549448740 is 4784494503.

It is a self number, because there is not a number n which added to its sum of digits gives 30549448740.

It is not an unprimeable number, because it can be changed into a prime (30549448747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254578680 + ... + 254578799.

It is an arithmetic number, because the mean of its divisors is an integer number (3564102360).

Almost surely, 2^30549448740 is an apocalyptic number.

30549448740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30549448740 is an abundant number, since it is smaller than the sum of its proper divisors (54989007900).

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

30549448740 is a wasteful number, since it uses less digits than its factorization.

30549448740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509157491 (or 509157489 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 30549448740 in words is "thirty billion, five hundred forty-nine million, four hundred forty-eight thousand, seven hundred forty".