2202720 has 96 divisors (see below), whose sum is σ = 7493472. Its totient is φ = 540672.

The previous prime is 2202719. The next prime is 2202763. The reversal of 2202720 is 272022.

It is a tau number, because it is divible by the number of its divisors (96).

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 2202720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6064 + ... + 6416.

It is an arithmetic number, because the mean of its divisors is an integer number (78057).

2^2202720 is an apocalyptic number.

2202720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2202720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3746736).

2202720 is an abundant number, since it is smaller than the sum of its proper divisors (5290752).

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

2202720 is a wasteful number, since it uses less digits than its factorization.

2202720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 2202720 is about 1484.1563259980. The cubic root of 2202720 is about 130.1127227429.

Adding to 2202720 its reverse (272022), we get a palindrome (2474742).

The spelling of 2202720 in words is "two million, two hundred two thousand, seven hundred twenty".