2243858 has 8 divisors (see below), whose sum is σ = 3386928. Its totient is φ = 1114884.

The previous prime is 2243851. The next prime is 2243887. The reversal of 2243858 is 8583422.

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

It is a d-powerful number, because it can be written as 2¹⁷ + 2²¹ + 4⁴ + 3⁸ + 8⁴ + 5⁴ + 8⁴ .

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, 3116 + ... + 3767.

It is an arithmetic number, because the mean of its divisors is an integer number (423366).

2^2243858 is an apocalyptic number.

2243858 is a deficient number, since it is larger than the sum of its proper divisors (1143070).

2243858 is a wasteful number, since it uses less digits than its factorization.

2243858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7048.

The product of its digits is 15360, while the sum is 32.

The square root of 2243858 is about 1497.9512675651. The cubic root of 2243858 is about 130.9177270245.

The spelling of 2243858 in words is "two million, two hundred forty-three thousand, eight hundred fifty-eight".