2243420 has 24 divisors (see below), whose sum is σ = 4917024. Its totient is φ = 858176.

The previous prime is 2243419. The next prime is 2243429. The reversal of 2243420 is 243422.

2243420 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1979 + ... + 2898.

It is an arithmetic number, because the mean of its divisors is an integer number (204876).

2^2243420 is an apocalyptic number.

2243420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2243420 is an abundant number, since it is smaller than the sum of its proper divisors (2673604).

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

2243420 is a wasteful number, since it uses less digits than its factorization.

2243420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4909 (or 4907 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 2243420 is about 1497.8050607472. The cubic root of 2243420 is about 130.9092081111.

Adding to 2243420 its reverse (243422), we get a palindrome (2486842).

The spelling of 2243420 in words is "two million, two hundred forty-three thousand, four hundred twenty".