2240220 has 24 divisors (see below), whose sum is σ = 6272784. Its totient is φ = 597376.

The previous prime is 2240213. The next prime is 2240267. The reversal of 2240220 is 220422.

It is a happy number.

2240220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2240196 and 2240205.

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 7 ways as a sum of consecutive naturals, for example, 18609 + ... + 18728.

It is an arithmetic number, because the mean of its divisors is an integer number (261366).

2^2240220 is an apocalyptic number.

2240220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2240220 is an abundant number, since it is smaller than the sum of its proper divisors (4032564).

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

2240220 is a wasteful number, since it uses less digits than its factorization.

2240220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37349 (or 37347 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 2240220 is about 1496.7364497466. The cubic root of 2240220 is about 130.8469358065.

Adding to 2240220 its reverse (220422), we get a palindrome (2460642).

It can be divided in two parts, 22402 and 20, that added together give a palindrome (22422).

The spelling of 2240220 in words is "two million, two hundred forty thousand, two hundred twenty".