2438378957 has 16 divisors (see below), whose sum is σ = 2890631040. Its totient is φ = 2012496192.

The previous prime is 2438378953. The next prime is 2438378977. The reversal of 2438378957 is 7598738342.

It is not a de Polignac number, because 2438378957 - 2² = 2438378953 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2438378951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59618 + ... + 91820.

It is an arithmetic number, because the mean of its divisors is an integer number (180664440).

Almost surely, 2^2438378957 is an apocalyptic number.

It is an amenable number.

2438378957 is a deficient number, since it is larger than the sum of its proper divisors (452252083).

2438378957 is a wasteful number, since it uses less digits than its factorization.

2438378957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32612.

The product of its digits is 10160640, while the sum is 56.

The square root of 2438378957 is about 49379.9448865630. The cubic root of 2438378957 is about 1345.9648981085.

The spelling of 2438378957 in words is "two billion, four hundred thirty-eight million, three hundred seventy-eight thousand, nine hundred fifty-seven".