2224666 has 4 divisors (see below), whose sum is σ = 3337002. Its totient is φ = 1112332.

The previous prime is 2224661. The next prime is 2224667. The reversal of 2224666 is 6664222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1452025 + 772641 = 1205^2 + 879^2 .

It is an Ulam number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2224661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556165 + ... + 556168.

2^2224666 is an apocalyptic number.

2224666 is a deficient number, since it is larger than the sum of its proper divisors (1112336).

2224666 is a wasteful number, since it uses less digits than its factorization.

2224666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112335.

The product of its digits is 6912, while the sum is 28.

The square root of 2224666 is about 1491.5314277614. The cubic root of 2224666 is about 130.5434058476.

Adding to 2224666 its reverse (6664222), we get a palindrome (8888888).

The spelling of 2224666 in words is "two million, two hundred twenty-four thousand, six hundred sixty-six".