3840436838 has 48 divisors (see below), whose sum is σ = 6781818960. Its totient is φ = 1626218496.

The previous prime is 3840436837. The next prime is 3840436927. The reversal of 3840436838 is 8386340483.

3840436838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3840436792 and 3840436801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3840436837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3500306 + ... + 3501402.

It is an arithmetic number, because the mean of its divisors is an integer number (141287895).

Almost surely, 2^3840436838 is an apocalyptic number.

3840436838 is a deficient number, since it is larger than the sum of its proper divisors (2941382122).

3840436838 is a wasteful number, since it uses less digits than its factorization.

3840436838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509 (or 1502 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 47.

The square root of 3840436838 is about 61971.2581605376. The cubic root of 3840436838 is about 1566.0064348740.

The spelling of 3840436838 in words is "three billion, eight hundred forty million, four hundred thirty-six thousand, eight hundred thirty-eight".