2266890 has 64 divisors (see below), whose sum is σ = 5927040. Its totient is φ = 552960.

The previous prime is 2266883. The next prime is 2266897. The reversal of 2266890 is 986622.

It is an interprime number because it is at equal distance from previous prime (2266883) and next prime (2266897).

It is not an unprimeable number, because it can be changed into a prime (2266897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23322 + ... + 23418.

It is an arithmetic number, because the mean of its divisors is an integer number (92610).

2^2266890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2266890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2963520).

2266890 is an abundant number, since it is smaller than the sum of its proper divisors (3660150).

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

2266890 is a wasteful number, since it uses less digits than its factorization.

2266890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 2266890 is about 1505.6194738379. The cubic root of 2266890 is about 131.3641365444.

Subtracting from 2266890 its product of nonzero digits (10368), we obtain a palindrome (2256522).

The spelling of 2266890 in words is "two million, two hundred sixty-six thousand, eight hundred ninety".