4378381756 has 24 divisors (see below), whose sum is σ = 9271868256. Its totient is φ = 1766069760.

The previous prime is 4378381753. The next prime is 4378381757. The reversal of 4378381756 is 6571838734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4378381753) 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 7 ways as a sum of consecutive naturals, for example, 4598665 + ... + 4599616.

It is an arithmetic number, because the mean of its divisors is an integer number (386327844).

Almost surely, 2^4378381756 is an apocalyptic number.

It is an amenable number.

4378381756 is an abundant number, since it is smaller than the sum of its proper divisors (4893486500).

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

4378381756 is a wasteful number, since it uses less digits than its factorization.

4378381756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9198309 (or 9198307 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 52.

The square root of 4378381756 is about 66169.3415110049. The cubic root of 4378381756 is about 1635.9544541095.

The spelling of 4378381756 in words is "four billion, three hundred seventy-eight million, three hundred eighty-one thousand, seven hundred fifty-six".