3855535386 has 16 divisors (see below), whose sum is σ = 7722238368. Its totient is φ = 1283317200.

The previous prime is 3855535373. The next prime is 3855535459. The reversal of 3855535386 is 6835355583.

It is a happy number.

It is a super-2 number, since 2×3855535386² = 29730306225396337992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460825 + ... + 469116.

It is an arithmetic number, because the mean of its divisors is an integer number (482639898).

Almost surely, 2^3855535386 is an apocalyptic number.

3855535386 is an abundant number, since it is smaller than the sum of its proper divisors (3866702982).

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

3855535386 is a wasteful number, since it uses less digits than its factorization.

3855535386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930637.

The product of its digits is 6480000, while the sum is 51.

The square root of 3855535386 is about 62092.9576200071. The cubic root of 3855535386 is about 1568.0559851440.

It can be divided in two parts, 3855 and 535386, that added together give a triangular number (539241 = T₁₀₃₈).

The spelling of 3855535386 in words is "three billion, eight hundred fifty-five million, five hundred thirty-five thousand, three hundred eighty-six".