2204520 has 32 divisors (see below), whose sum is σ = 6613920. Its totient is φ = 587840.

The previous prime is 2204507. The next prime is 2204537. The reversal of 2204520 is 254022.

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 2204520.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9066 + ... + 9305.

It is an arithmetic number, because the mean of its divisors is an integer number (206685).

2^2204520 is an apocalyptic number.

2204520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2204520 is an abundant number, since it is smaller than the sum of its proper divisors (4409400).

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

2204520 is a wasteful number, since it uses less digits than its factorization.

2204520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18385 (or 18381 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2204520 is about 1484.7626072878. The cubic root of 2204520 is about 130.1481545628.

Adding to 2204520 its reverse (254022), we get a palindrome (2458542).

The spelling of 2204520 in words is "two million, two hundred four thousand, five hundred twenty".