2200420 has 24 divisors (see below), whose sum is σ = 4649400. Its totient is φ = 874752.

The previous prime is 2200403. The next prime is 2200423. The reversal of 2200420 is 240022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 195364 + 2005056 = 442^2 + 1416^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2200397 and 2200406.

It is not an unprimeable number, because it can be changed into a prime (2200423) 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, 5176 + ... + 5584.

It is an arithmetic number, because the mean of its divisors is an integer number (193725).

2^2200420 is an apocalyptic number.

2200420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2200420 is an abundant number, since it is smaller than the sum of its proper divisors (2448980).

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

2200420 is a wasteful number, since it uses less digits than its factorization.

2200420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 2200420 is about 1483.3812726336. The cubic root of 2200420 is about 130.0674206495.

Adding to 2200420 its reverse (240022), we get a palindrome (2440442).

The spelling of 2200420 in words is "two million, two hundred thousand, four hundred twenty".