2243140 has 24 divisors (see below), whose sum is σ = 4959360. Its totient is φ = 849888.

The previous prime is 2243123. The next prime is 2243161. The reversal of 2243140 is 413422.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2572 + ... + 3331.

It is an arithmetic number, because the mean of its divisors is an integer number (206640).

2^2243140 is an apocalyptic number.

2243140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2243140 is an abundant number, since it is smaller than the sum of its proper divisors (2716220).

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

2243140 is a wasteful number, since it uses less digits than its factorization.

2243140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5931 (or 5929 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2243140 is about 1497.7115877231. The cubic root of 2243140 is about 130.9037616494.

Adding to 2243140 its reverse (413422), we get a palindrome (2656562).

It can be divided in two parts, 224 and 3140, that added together give a square (3364 = 58²).

The spelling of 2243140 in words is "two million, two hundred forty-three thousand, one hundred forty".