1836642852 has 144 divisors (see below), whose sum is σ = 5256381312. Its totient is φ = 535818240.

The previous prime is 1836642823. The next prime is 1836642887. The reversal of 1836642852 is 2582466381.

1836642852 is a `hidden beast` number, since 1 + 8 + 366 + 4 + 285 + 2 = 666.

1836642852 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1836642798 and 1836642807.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1508548 + ... + 1509764.

It is an arithmetic number, because the mean of its divisors is an integer number (36502648).

Almost surely, 2^1836642852 is an apocalyptic number.

1836642852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1836642852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2628190656).

1836642852 is an abundant number, since it is smaller than the sum of its proper divisors (3419738460).

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

1836642852 is a wasteful number, since it uses less digits than its factorization.

1836642852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378 (or 1373 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 1836642852 is about 42856.0713551767. The cubic root of 1836642852 is about 1224.6394278499.

The spelling of 1836642852 in words is "one billion, eight hundred thirty-six million, six hundred forty-two thousand, eight hundred fifty-two".