2230440 has 32 divisors (see below), whose sum is σ = 6691680. Its totient is φ = 594752.

The previous prime is 2230439. The next prime is 2230457. The reversal of 2230440 is 440322.

It is a happy number.

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

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, 9174 + ... + 9413.

It is an arithmetic number, because the mean of its divisors is an integer number (209115).

2^2230440 is an apocalyptic number.

2230440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2230440 is an abundant number, since it is smaller than the sum of its proper divisors (4461240).

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

2230440 is a wasteful number, since it uses less digits than its factorization.

2230440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18601 (or 18597 counting only the distinct ones).

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

The square root of 2230440 is about 1493.4657679371. The cubic root of 2230440 is about 130.6562477231.

Adding to 2230440 its reverse (440322), we get a palindrome (2670762).

The spelling of 2230440 in words is "two million, two hundred thirty thousand, four hundred forty".