9919303380 has 144 divisors (see below), whose sum is σ = 35882106624. Its totient is φ = 2168686080.

The previous prime is 9919303369. The next prime is 9919303393. The reversal of 9919303380 is 833039199.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 142161 + ... + 200120.

It is an arithmetic number, because the mean of its divisors is an integer number (249181296).

Almost surely, 2^9919303380 is an apocalyptic number.

9919303380 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9919303380 is an abundant number, since it is smaller than the sum of its proper divisors (25962803244).

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

9919303380 is a wasteful number, since it uses less digits than its factorization.

9919303380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342326 (or 342321 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 9919303380 is about 99595.6996059569. The cubic root of 9919303380 is about 2148.6238447864.

The spelling of 9919303380 in words is "nine billion, nine hundred nineteen million, three hundred three thousand, three hundred eighty".