2223420 has 24 divisors (see below), whose sum is σ = 6225744. Its totient is φ = 592896.

The previous prime is 2223407. The next prime is 2223421. The reversal of 2223420 is 243222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2223420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223421) 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, 18469 + ... + 18588.

It is an arithmetic number, because the mean of its divisors is an integer number (259406).

2^2223420 is an apocalyptic number.

2223420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2223420 is an abundant number, since it is smaller than the sum of its proper divisors (4002324).

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

2223420 is a wasteful number, since it uses less digits than its factorization.

2223420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37069 (or 37067 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 2223420 is about 1491.1136777590. The cubic root of 2223420 is about 130.5190295351.

Adding to 2223420 its reverse (243222), we get a palindrome (2466642).

The spelling of 2223420 in words is "two million, two hundred twenty-three thousand, four hundred twenty".