8438005756 has 12 divisors (see below), whose sum is σ = 15109917592. Its totient is φ = 4120886448.

The previous prime is 8438005753. The next prime is 8438005757. The reversal of 8438005756 is 6575008348.

It is a super-2 number, since 2×8438005756² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8438005753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24528915 + ... + 24529258.

Almost surely, 2^8438005756 is an apocalyptic number.

8438005756 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

8438005756 is a deficient number, since it is larger than the sum of its proper divisors (6671911836).

8438005756 is a wasteful number, since it uses less digits than its factorization.

8438005756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49058220 (or 49058218 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 46.

The square root of 8438005756 is about 91858.6183000811. The cubic root of 8438005756 is about 2035.8538881667.

It can be divided in two parts, 843800 and 5756, that added together give a triangular number (849556 = T₁₃₀₃).

The spelling of 8438005756 in words is "eight billion, four hundred thirty-eight million, five thousand, seven hundred fifty-six".