9890444264 has 16 divisors (see below), whose sum is σ = 18627745920. Its totient is φ = 4923045360.

The previous prime is 9890444237. The next prime is 9890444269. The reversal of 9890444264 is 4624440989.

It is not an unprimeable number, because it can be changed into a prime (9890444269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2770202 + ... + 2773769.

It is an arithmetic number, because the mean of its divisors is an integer number (1164234120).

Almost surely, 2^9890444264 is an apocalyptic number.

It is an amenable number.

9890444264 is a deficient number, since it is larger than the sum of its proper divisors (8737301656).

9890444264 is a wasteful number, since it uses less digits than its factorization.

9890444264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5544200 (or 5544196 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 50.

The square root of 9890444264 is about 99450.7127375164. The cubic root of 9890444264 is about 2146.5380929170.

The spelling of 9890444264 in words is "nine billion, eight hundred ninety million, four hundred forty-four thousand, two hundred sixty-four".