9022890 has 32 divisors (see below), whose sum is σ = 21983040. Its totient is φ = 2370192.

The previous prime is 9022883. The next prime is 9022913. The reversal of 9022890 is 982209.

9022890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134637 + ... + 134703.

It is an arithmetic number, because the mean of its divisors is an integer number (686970).

Almost surely, 2^9022890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9022890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10991520).

9022890 is an abundant number, since it is smaller than the sum of its proper divisors (12960150).

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

9022890 is an frugal number, since it uses more digits than its factorization.

9022890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 9022890 is about 3003.8125773756. The cubic root of 9022890 is about 208.1845778989.

9022890 divided by its sum of digits (30) gives a cube (300763 = 67³).

The spelling of 9022890 in words is "nine million, twenty-two thousand, eight hundred ninety".