3885521436 has 18 divisors (see below), whose sum is σ = 9821734832. Its totient is φ = 1295173800.

The previous prime is 3885521383. The next prime is 3885521447. The reversal of 3885521436 is 6341255883.

3885521436 is a `hidden beast` number, since 3 + 8 + 85 + 521 + 43 + 6 = 666.

3885521436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 3885521391 and 3885521400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53965540 + ... + 53965611.

Almost surely, 2^3885521436 is an apocalyptic number.

3885521436 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3885521436 is an abundant number, since it is smaller than the sum of its proper divisors (5936213396).

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

3885521436 is a wasteful number, since it uses less digits than its factorization.

3885521436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107931161 (or 107931156 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 3885521436 is about 62333.9509095966. The cubic root of 3885521436 is about 1572.1106258220.

The spelling of 3885521436 in words is "three billion, eight hundred eighty-five million, five hundred twenty-one thousand, four hundred thirty-six".