9949049880 has 256 divisors, whose sum is σ = 38219074560. Its totient is φ = 2011392000.

The previous prime is 9949049867. The next prime is 9949049909. The reversal of 9949049880 is 889409499.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 327330 + ... + 356430.

It is an arithmetic number, because the mean of its divisors is an integer number (149293260).

Almost surely, 2^9949049880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9949049880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19109537280).

9949049880 is an abundant number, since it is smaller than the sum of its proper divisors (28270024680).

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

9949049880 is a wasteful number, since it uses less digits than its factorization.

9949049880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29170 (or 29166 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 60.

The square root of 9949049880 is about 99744.9240813787. The cubic root of 9949049880 is about 2150.7695013730.

The spelling of 9949049880 in words is "nine billion, nine hundred forty-nine million, forty-nine thousand, eight hundred eighty".