2202240 has 128 divisors (see below), whose sum is σ = 7441920. Its totient is φ = 552960.

The previous prime is 2202169. The next prime is 2202253. The reversal of 2202240 is 422022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×2202240² = 9699722035200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59502 + ... + 59538.

It is an arithmetic number, because the mean of its divisors is an integer number (58140).

2^2202240 is an apocalyptic number.

2202240 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 2202240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3720960).

2202240 is an abundant number, since it is smaller than the sum of its proper divisors (5239680).

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

2202240 is a wasteful number, since it uses less digits than its factorization.

2202240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 2202240 is about 1483.9946091546. The cubic root of 2202240 is about 130.1032709978.

Adding to 2202240 its reverse (422022), we get a palindrome (2624262).

It can be divided in two parts, 2202 and 240, that added together give a palindrome (2442).

The spelling of 2202240 in words is "two million, two hundred two thousand, two hundred forty".