9481890 has 64 divisors (see below), whose sum is σ = 25297920. Its totient is φ = 2255040.

The previous prime is 9481889. The next prime is 9481951. The reversal of 9481890 is 981849.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19227 + ... + 19713.

It is an arithmetic number, because the mean of its divisors is an integer number (395280).

Almost surely, 2^9481890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9481890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12648960).

9481890 is an abundant number, since it is smaller than the sum of its proper divisors (15816030).

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

9481890 is a wasteful number, since it uses less digits than its factorization.

9481890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 9481890 is about 3079.2677701038. The cubic root of 9481890 is about 211.6565133149.

The spelling of 9481890 in words is "nine million, four hundred eighty-one thousand, eight hundred ninety".