2398807878 has 32 divisors (see below), whose sum is σ = 4910201856. Its totient is φ = 780974688.

The previous prime is 2398807871. The next prime is 2398807883. The reversal of 2398807878 is 8787088932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2398807871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54001 + ... + 87827.

It is an arithmetic number, because the mean of its divisors is an integer number (153443808).

Almost surely, 2^2398807878 is an apocalyptic number.

2398807878 is an abundant number, since it is smaller than the sum of its proper divisors (2511393978).

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

2398807878 is a wasteful number, since it uses less digits than its factorization.

2398807878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34108.

The product of its (nonzero) digits is 10838016, while the sum is 60.

The square root of 2398807878 is about 48977.6263001791. The cubic root of 2398807878 is about 1338.6441840759.

The spelling of 2398807878 in words is "two billion, three hundred ninety-eight million, eight hundred seven thousand, eight hundred seventy-eight".