2223660 has 24 divisors (see below), whose sum is σ = 6226416. Its totient is φ = 592960.

The previous prime is 2223631. The next prime is 2223671. The reversal of 2223660 is 663222.

2223660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18471 + ... + 18590.

It is an arithmetic number, because the mean of its divisors is an integer number (259434).

2^2223660 is an apocalyptic number.

2223660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2223660 is an abundant number, since it is smaller than the sum of its proper divisors (4002756).

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

2223660 is a wasteful number, since it uses less digits than its factorization.

2223660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37073 (or 37071 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2223660 is about 1491.1941523490. The cubic root of 2223660 is about 130.5237255200.

Adding to 2223660 its reverse (663222), we get a palindrome (2886882).

The spelling of 2223660 in words is "two million, two hundred twenty-three thousand, six hundred sixty".