2242666 has 4 divisors (see below), whose sum is σ = 3364002. Its totient is φ = 1121332.

The previous prime is 2242663. The next prime is 2242679. The reversal of 2242666 is 6662422.

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., 2187441 + 55225 = 1479^2 + 235^2 .

It is a d-powerful number, because it can be written as 2⁹ + 2¹⁵ + 4⁸ + 2²¹ + 6 + 6² + 6⁶ .

It is not an unprimeable number, because it can be changed into a prime (2242663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560665 + ... + 560668.

2^2242666 is an apocalyptic number.

2242666 is a deficient number, since it is larger than the sum of its proper divisors (1121336).

2242666 is a wasteful number, since it uses less digits than its factorization.

2242666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121335.

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

The square root of 2242666 is about 1497.5533379483. The cubic root of 2242666 is about 130.8945405346.

The spelling of 2242666 in words is "two million, two hundred forty-two thousand, six hundred sixty-six".