9840990489 has 8 divisors (see below), whose sum is σ = 14314168032. Its totient is φ = 5964236640.

The previous prime is 9840990469. The next prime is 9840990521.

9840990489 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9840990489 - 2⁷ = 9840990361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9840990469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149105884 + ... + 149105949.

It is an arithmetic number, because the mean of its divisors is an integer number (1789271004).

Almost surely, 2^9840990489 is an apocalyptic number.

It is an amenable number.

9840990489 is a deficient number, since it is larger than the sum of its proper divisors (4473177543).

9840990489 is a wasteful number, since it uses less digits than its factorization.

9840990489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298211847.

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

The square root of 9840990489 is about 99201.7665618914. The cubic root of 9840990489 is about 2142.9544374293.

The spelling of 9840990489 in words is "nine billion, eight hundred forty million, nine hundred ninety thousand, four hundred eighty-nine".