3856803438 has 32 divisors (see below), whose sum is σ = 8326540800. Its totient is φ = 1187300576.

The previous prime is 3856803359. The next prime is 3856803443. The reversal of 3856803438 is 8343086583.

It is a congruent number.

It is an unprimeable number.

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, 477858 + ... + 485861.

It is an arithmetic number, because the mean of its divisors is an integer number (260204400).

Almost surely, 2^3856803438 is an apocalyptic number.

3856803438 is an abundant number, since it is smaller than the sum of its proper divisors (4469737362).

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

3856803438 is a wasteful number, since it uses less digits than its factorization.

3856803438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963776.

The product of its (nonzero) digits is 1658880, while the sum is 48.

The square root of 3856803438 is about 62103.1676969863. The cubic root of 3856803438 is about 1568.2278729522.

The spelling of 3856803438 in words is "three billion, eight hundred fifty-six million, eight hundred three thousand, four hundred thirty-eight".