2202840 has 96 divisors (see below), whose sum is σ = 7441200. Its totient is φ = 564480.

The previous prime is 2202817. The next prime is 2202853. The reversal of 2202840 is 482022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10335 + ... + 10545.

2^2202840 is an apocalyptic number.

2202840 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 2202840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3720600).

2202840 is an abundant number, since it is smaller than the sum of its proper divisors (5238360).

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

2202840 is a wasteful number, since it uses less digits than its factorization.

2202840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2202840 is about 1484.1967524557. The cubic root of 2202840 is about 130.1150854646.

Adding to 2202840 its reverse (482022), we get a palindrome (2684862).

The spelling of 2202840 in words is "two million, two hundred two thousand, eight hundred forty".