2243974278 has 32 divisors (see below), whose sum is σ = 5523630336. Its totient is φ = 591817248.

The previous prime is 2243974273. The next prime is 2243974283. The reversal of 2243974278 is 8724793422.

It is an interprime number because it is at equal distance from previous prime (2243974273) and next prime (2243974283).

It is a Curzon 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2054376 + ... + 2055467.

It is an arithmetic number, because the mean of its divisors is an integer number (172613448).

Almost surely, 2^2243974278 is an apocalyptic number.

2243974278 is an abundant number, since it is smaller than the sum of its proper divisors (3279656058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2243974278 is a wasteful number, since it uses less digits than its factorization.

2243974278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4109868.

The product of its digits is 1354752, while the sum is 48.

The square root of 2243974278 is about 47370.6056326072. The cubic root of 2243974278 is about 1309.1998839583.

The spelling of 2243974278 in words is "two billion, two hundred forty-three million, nine hundred seventy-four thousand, two hundred seventy-eight".