2204340 has 24 divisors (see below), whose sum is σ = 6172320. Its totient is φ = 587808.

The previous prime is 2204333. The next prime is 2204341. The reversal of 2204340 is 434022.

It is a happy number.

It is a super-2 number, since 2×2204340² = 9718229671200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204341) 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, 18310 + ... + 18429.

It is an arithmetic number, because the mean of its divisors is an integer number (257180).

2^2204340 is an apocalyptic number.

2204340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2204340 is an abundant number, since it is smaller than the sum of its proper divisors (3967980).

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

2204340 is a wasteful number, since it uses less digits than its factorization.

2204340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36751 (or 36749 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 2204340 is about 1484.7019902997. The cubic root of 2204340 is about 130.1446122490.

Adding to 2204340 its reverse (434022), we get a palindrome (2638362).

It can be divided in two parts, 220 and 4340, that added together give a triangular number (4560 = T₉₅).

The spelling of 2204340 in words is "two million, two hundred four thousand, three hundred forty".