2243859 has 4 divisors (see below), whose sum is σ = 2991816. Its totient is φ = 1495904.

The previous prime is 2243851. The next prime is 2243887. The reversal of 2243859 is 9583422.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2243859 - 2³ = 2243851 is a prime.

It is a d-powerful number, because it can be written as 2 + 2⁷ + 4⁸ + 3⁷ + 8⁷ + 5⁷ + 9³ .

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2243851) 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, 373974 + ... + 373979.

It is an arithmetic number, because the mean of its divisors is an integer number (747954).

2^2243859 is an apocalyptic number.

2243859 is a deficient number, since it is larger than the sum of its proper divisors (747957).

2243859 is an equidigital number, since it uses as much as digits as its factorization.

2243859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747956.

The product of its digits is 17280, while the sum is 33.

The square root of 2243859 is about 1497.9516013543. The cubic root of 2243859 is about 130.9177464728.

The spelling of 2243859 in words is "two million, two hundred forty-three thousand, eight hundred fifty-nine".