9890266228 has 12 divisors (see below), whose sum is σ = 17479332612. Its totient is φ = 4896171200.

The previous prime is 9890266223. The next prime is 9890266297. The reversal of 9890266228 is 8226620989.

It can be written as a sum of positive squares in 2 ways, for example, as 6872741604 + 3017524624 = 82902^2 + 54932^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9890266223) 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, 12240025 + ... + 12240832.

It is an arithmetic number, because the mean of its divisors is an integer number (1456611051).

Almost surely, 2^9890266228 is an apocalyptic number.

It is an amenable number.

9890266228 is a deficient number, since it is larger than the sum of its proper divisors (7589066384).

9890266228 is a wasteful number, since it uses less digits than its factorization.

9890266228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24480962 (or 24480960 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 9890266228 is about 99449.8176368363. The cubic root of 9890266228 is about 2146.5252130321.

The spelling of 9890266228 in words is "nine billion, eight hundred ninety million, two hundred sixty-six thousand, two hundred twenty-eight".