3855218938 has 8 divisors (see below), whose sum is σ = 5805868320. Its totient is φ = 1919929500.

The previous prime is 3855218933. The next prime is 3855218981. The reversal of 3855218938 is 8398125583.

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

It is not an unprimeable number, because it can be changed into a prime (3855218933) 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, 3839358 + ... + 3840361.

It is an arithmetic number, because the mean of its divisors is an integer number (725733540).

Almost surely, 2^3855218938 is an apocalyptic number.

3855218938 is a deficient number, since it is larger than the sum of its proper divisors (1950649382).

3855218938 is a wasteful number, since it uses less digits than its factorization.

3855218938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7679972.

The product of its digits is 2073600, while the sum is 52.

The square root of 3855218938 is about 62090.4093882461. The cubic root of 3855218938 is about 1568.0130839031.

The spelling of 3855218938 in words is "three billion, eight hundred fifty-five million, two hundred eighteen thousand, nine hundred thirty-eight".