2243749678 has 8 divisors (see below), whose sum is σ = 3383063568. Its totient is φ = 1116061824.

The previous prime is 2243749663. The next prime is 2243749679. The reversal of 2243749678 is 8769473422.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243749679) 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, 2906026 + ... + 2906797.

It is an arithmetic number, because the mean of its divisors is an integer number (422882946).

Almost surely, 2^2243749678 is an apocalyptic number.

2243749678 is a deficient number, since it is larger than the sum of its proper divisors (1139313890).

2243749678 is a wasteful number, since it uses less digits than its factorization.

2243749678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5813018.

The product of its digits is 4064256, while the sum is 52.

The square root of 2243749678 is about 47368.2349048389. The cubic root of 2243749678 is about 1309.1562031093.

The spelling of 2243749678 in words is "two billion, two hundred forty-three million, seven hundred forty-nine thousand, six hundred seventy-eight".