3855491938 has 8 divisors (see below), whose sum is σ = 5790133440. Its totient is φ = 1925447460.

The previous prime is 3855491911. The next prime is 3855491947. The reversal of 3855491938 is 8391945583.

3855491938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1147158 + ... + 1150513.

It is an arithmetic number, because the mean of its divisors is an integer number (723766680).

Almost surely, 2^3855491938 is an apocalyptic number.

3855491938 is a deficient number, since it is larger than the sum of its proper divisors (1934641502).

3855491938 is a wasteful number, since it uses less digits than its factorization.

3855491938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298512.

The product of its digits is 4665600, while the sum is 55.

The square root of 3855491938 is about 62092.6077564794. The cubic root of 3855491938 is about 1568.0500949847.

The spelling of 3855491938 in words is "three billion, eight hundred fifty-five million, four hundred ninety-one thousand, nine hundred thirty-eight".