3857155236 has 81 divisors (see below), whose sum is σ = 10728377569. Its totient is φ = 1167592800.

The previous prime is 3857155229. The next prime is 3857155259. The reversal of 3857155236 is 6325517583.

The square root of 3857155236 is 62106.

It is a perfect power (a square), and thus also a powerful number.

3857155236 is a `hidden beast` number, since 3 + 8 + 571 + 55 + 23 + 6 = 666.

3857155236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2391796836 + 1465358400 = 48906^2 + 38280^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3857155191 and 3857155200.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4098526 + ... + 4099466.

Almost surely, 2^3857155236 is an apocalyptic number.

3857155236 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

3857155236 is the 62106-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3857155236

3857155236 is an abundant number, since it is smaller than the sum of its proper divisors (6871222333).

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

3857155236 is a wasteful number, since it uses less digits than its factorization.

3857155236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914 (or 957 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The cubic root of 3857155236 is about 1568.2755534269.

The spelling of 3857155236 in words is "three billion, eight hundred fifty-seven million, one hundred fifty-five thousand, two hundred thirty-six".