22330890 has 80 divisors (see below), whose sum is σ = 63249120. Its totient is φ = 5637600.

The previous prime is 22330879. The next prime is 22330897. The reversal of 22330890 is 9803322.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22330897) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14665 + ... + 16115.

It is an arithmetic number, because the mean of its divisors is an integer number (790614).

Almost surely, 2^22330890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22330890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31624560).

22330890 is an abundant number, since it is smaller than the sum of its proper divisors (40918230).

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

22330890 is a wasteful number, since it uses less digits than its factorization.

22330890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489 (or 1480 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 22330890 is about 4725.5571100136. The cubic root of 22330890 is about 281.6017465699.

It can be divided in two parts, 22330 and 890, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 22330890 in words is "twenty-two million, three hundred thirty thousand, eight hundred ninety".