2261898 has 16 divisors (see below), whose sum is σ = 5026560. Its totient is φ = 753948.

The previous prime is 2261891. The next prime is 2261911. The reversal of 2261898 is 8981622.

It is not an unprimeable number, because it can be changed into a prime (2261891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20890 + ... + 20997.

It is an arithmetic number, because the mean of its divisors is an integer number (314160).

2^2261898 is an apocalyptic number.

2261898 is an abundant number, since it is smaller than the sum of its proper divisors (2764662).

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

2261898 is a wasteful number, since it uses less digits than its factorization.

2261898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41898 (or 41892 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 2261898 is about 1503.9607707650. The cubic root of 2261898 is about 131.2676384458.

Adding to 2261898 its product of digits (13824), we get a palindrome (2275722).

The spelling of 2261898 in words is "two million, two hundred sixty-one thousand, eight hundred ninety-eight".