9228890 has 32 divisors (see below), whose sum is σ = 18475776. Its totient is φ = 3290560.

The previous prime is 9228887. The next prime is 9228899. The reversal of 9228890 is 988229.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9228899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5039 + ... + 6621.

It is an arithmetic number, because the mean of its divisors is an integer number (577368).

Almost surely, 2^9228890 is an apocalyptic number.

9228890 is an abundant number, since it is smaller than the sum of its proper divisors (9246886).

9228890 is a wasteful number, since it uses less digits than its factorization.

9228890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 9228890 is about 3037.9088202249. The cubic root of 9228890 is about 209.7570129815.

It can be divided in two parts, 92 and 28890, that added together give a palindrome (28982).

The spelling of 9228890 in words is "nine million, two hundred twenty-eight thousand, eight hundred ninety".