2243974279 has 4 divisors (see below), whose sum is σ = 2375972784. Its totient is φ = 2111975776.

The previous prime is 2243974273. The next prime is 2243974283. The reversal of 2243974279 is 9724793422.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9724793422 = 2 ⋅4862396711.

It is a cyclic number.

It is not a de Polignac number, because 2243974279 - 2¹⁹ = 2243449991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243974273) 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, 65999227 + ... + 65999260.

It is an arithmetic number, because the mean of its divisors is an integer number (593993196).

Almost surely, 2^2243974279 is an apocalyptic number.

2243974279 is a deficient number, since it is larger than the sum of its proper divisors (131998505).

2243974279 is a wasteful number, since it uses less digits than its factorization.

2243974279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131998504.

The product of its digits is 1524096, while the sum is 49.

The square root of 2243974279 is about 47370.6056431623. The cubic root of 2243974279 is about 1309.1998841528.

The spelling of 2243974279 in words is "two billion, two hundred forty-three million, nine hundred seventy-four thousand, two hundred seventy-nine".