9305449980 has 24 divisors (see below), whose sum is σ = 26055260112. Its totient is φ = 2481453312.

The previous prime is 9305449973. The next prime is 9305449981. The reversal of 9305449980 is 899445039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9305449981) 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, 77545357 + ... + 77545476.

It is an arithmetic number, because the mean of its divisors is an integer number (1085635838).

Almost surely, 2^9305449980 is an apocalyptic number.

It is an amenable number.

9305449980 is an abundant number, since it is smaller than the sum of its proper divisors (16749810132).

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

9305449980 is a wasteful number, since it uses less digits than its factorization.

9305449980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155090845 (or 155090843 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 51.

The square root of 9305449980 is about 96464.7603013660. The cubic root of 9305449980 is about 2103.3544258177.

The spelling of 9305449980 in words is "nine billion, three hundred five million, four hundred forty-nine thousand, nine hundred eighty".