2242420 has 12 divisors (see below), whose sum is σ = 4709124. Its totient is φ = 896960.

The previous prime is 2242381. The next prime is 2242433. The reversal of 2242420 is 242422.

2242420 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 can be written as a sum of positive squares in 2 ways, for example, as 381924 + 1860496 = 618^2 + 1364^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2242394 and 2242403.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 56041 + ... + 56080.

It is an arithmetic number, because the mean of its divisors is an integer number (392427).

2^2242420 is an apocalyptic number.

2242420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2242420 is an abundant number, since it is smaller than the sum of its proper divisors (2466704).

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

2242420 is a wasteful number, since it uses less digits than its factorization.

2242420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112130 (or 112128 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2242420 is about 1497.4712017264. The cubic root of 2242420 is about 130.8897543807.

Adding to 2242420 its reverse (242422), we get a palindrome (2484842).

It can be divided in two parts, 2242 and 420, that added together give a palindrome (2662).

The spelling of 2242420 in words is "two million, two hundred forty-two thousand, four hundred twenty".