9940296890 has 32 divisors (see below), whose sum is σ = 17988929280. Its totient is φ = 3954734784.

The previous prime is 9940296887. The next prime is 9940296917. The reversal of 9940296890 is 986920499.

9940296890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9940296890² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3394607 + ... + 3397533.

It is an arithmetic number, because the mean of its divisors is an integer number (562154040).

Almost surely, 2^9940296890 is an apocalyptic number.

9940296890 is a deficient number, since it is larger than the sum of its proper divisors (8048632390).

9940296890 is a wasteful number, since it uses less digits than its factorization.

9940296890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4646.

The product of its (nonzero) digits is 2519424, while the sum is 56.

The square root of 9940296890 is about 99701.0375572892. The cubic root of 9940296890 is about 2150.1385805753.

The spelling of 9940296890 in words is "nine billion, nine hundred forty million, two hundred ninety-six thousand, eight hundred ninety".