2239842278 has 4 divisors (see below), whose sum is σ = 3359763420. Its totient is φ = 1119921138.

The previous prime is 2239842277. The next prime is 2239842299. The reversal of 2239842278 is 8722489322.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2239842277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559960568 + ... + 559960571.

It is an arithmetic number, because the mean of its divisors is an integer number (839940855).

Almost surely, 2^2239842278 is an apocalyptic number.

2239842278 is a deficient number, since it is larger than the sum of its proper divisors (1119921142).

2239842278 is a wasteful number, since it uses less digits than its factorization.

2239842278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119921141.

The product of its digits is 774144, while the sum is 47.

The square root of 2239842278 is about 47326.9719927231. The cubic root of 2239842278 is about 1308.3958138832.

The spelling of 2239842278 in words is "two billion, two hundred thirty-nine million, eight hundred forty-two thousand, two hundred seventy-eight".