9991300344 has 64 divisors (see below), whose sum is σ = 25389962400. Its totient is φ = 3275790336.

The previous prime is 9991300339. The next prime is 9991300391. The reversal of 9991300344 is 4430031999.

It is a junction number, because it is equal to n+sod(n) for n = 9991300296 and 9991300305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645852 + ... + 661140.

Almost surely, 2^9991300344 is an apocalyptic number.

It is an amenable number.

9991300344 is an abundant number, since it is smaller than the sum of its proper divisors (15398662056).

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

9991300344 is a wasteful number, since it uses less digits than its factorization.

9991300344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15744 (or 15740 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 9991300344 is about 99956.4922553808. The cubic root of 9991300344 is about 2153.8097474147.

The spelling of 9991300344 in words is "nine billion, nine hundred ninety-one million, three hundred thousand, three hundred forty-four".