2239878905 has 16 divisors (see below), whose sum is σ = 2934360000. Its totient is φ = 1627805760.

The previous prime is 2239878899. The next prime is 2239878923. The reversal of 2239878905 is 5098789322.

2239878905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2239878905 - 2¹⁰ = 2239877881 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64346 + ... + 92844.

It is an arithmetic number, because the mean of its divisors is an integer number (183397500).

Almost surely, 2^2239878905 is an apocalyptic number.

It is an amenable number.

2239878905 is a deficient number, since it is larger than the sum of its proper divisors (694481095).

2239878905 is a wasteful number, since it uses less digits than its factorization.

2239878905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29944.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 2239878905 is about 47327.3589480757. The cubic root of 2239878905 is about 1308.4029456878.

The spelling of 2239878905 in words is "two billion, two hundred thirty-nine million, eight hundred seventy-eight thousand, nine hundred five".