2438188378 has 16 divisors (see below), whose sum is σ = 3781103616. Its totient is φ = 1177942320.

The previous prime is 2438188373. The next prime is 2438188381. The reversal of 2438188378 is 8738818342.

2438188378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2438188378² = 11889525133228541768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2438188373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10375 + ... + 70597.

It is an arithmetic number, because the mean of its divisors is an integer number (236318976).

Almost surely, 2^2438188378 is an apocalyptic number.

2438188378 is a deficient number, since it is larger than the sum of its proper divisors (1342915238).

2438188378 is a wasteful number, since it uses less digits than its factorization.

2438188378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60909.

The product of its digits is 2064384, while the sum is 52.

The square root of 2438188378 is about 49378.0151281924. The cubic root of 2438188378 is about 1345.9298311874.

The spelling of 2438188378 in words is "two billion, four hundred thirty-eight million, one hundred eighty-eight thousand, three hundred seventy-eight".