2243653 has 8 divisors (see below), whose sum is σ = 2376000. Its totient is φ = 2112768.

The previous prime is 2243623. The next prime is 2243663. The reversal of 2243653 is 3563422.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2243653 - 2⁵ = 2243621 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 2²¹ + 4⁸ + 3³ + 6² + 5⁷ + 3⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4773 + ... + 5221.

It is an arithmetic number, because the mean of its divisors is an integer number (297000).

2^2243653 is an apocalyptic number.

It is an amenable number.

2243653 is a deficient number, since it is larger than the sum of its proper divisors (132347).

2243653 is a wasteful number, since it uses less digits than its factorization.

2243653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731.

The product of its digits is 4320, while the sum is 25.

The square root of 2243653 is about 1497.8828392101. The cubic root of 2243653 is about 130.9137399999.

The spelling of 2243653 in words is "two million, two hundred forty-three thousand, six hundred fifty-three".