2266643 has 4 divisors (see below), whose sum is σ = 2385960. Its totient is φ = 2147328.

The previous prime is 2266639. The next prime is 2266679. The reversal of 2266643 is 3466622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3466622 = 2 ⋅1733311.

It is a cyclic number.

It is not a de Polignac number, because 2266643 - 2² = 2266639 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 2¹⁵ + 6⁶ + 6⁷ + 6⁷ + 4⁴ + 3¹³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2266633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59630 + ... + 59667.

It is an arithmetic number, because the mean of its divisors is an integer number (596490).

2^2266643 is an apocalyptic number.

2266643 is a deficient number, since it is larger than the sum of its proper divisors (119317).

2266643 is a wasteful number, since it uses less digits than its factorization.

2266643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119316.

The product of its digits is 10368, while the sum is 29.

The square root of 2266643 is about 1505.5374455655. The cubic root of 2266643 is about 131.3593652321.

The spelling of 2266643 in words is "two million, two hundred sixty-six thousand, six hundred forty-three".