9890392848 has 240 divisors, whose sum is σ = 32019736320. Its totient is φ = 2614332672.

The previous prime is 9890392823. The next prime is 9890392907. The reversal of 9890392848 is 8482930989.

It is a happy number.

It is a super-2 number, since 2×9890392848² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9890392791 and 9890392800.

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, 1919011 + ... + 1924157.

It is an arithmetic number, because the mean of its divisors is an integer number (133415568).

Almost surely, 2^9890392848 is an apocalyptic number.

9890392848 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9890392848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16009868160).

9890392848 is an abundant number, since it is smaller than the sum of its proper divisors (22129343472).

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

9890392848 is a wasteful number, since it uses less digits than its factorization.

9890392848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5234 (or 5221 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 60.

The square root of 9890392848 is about 99450.4542372733. The cubic root of 9890392848 is about 2146.5343732797.

The spelling of 9890392848 in words is "nine billion, eight hundred ninety million, three hundred ninety-two thousand, eight hundred forty-eight".