1836532644 has 48 divisors (see below), whose sum is σ = 4540536000. Its totient is φ = 575758336.

The previous prime is 1836532553. The next prime is 1836532651. The reversal of 1836532644 is 4462356381.

It is a junction number, because it is equal to n+sod(n) for n = 1836532596 and 1836532605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426052 + ... + 430340.

It is an arithmetic number, because the mean of its divisors is an integer number (94594500).

Almost surely, 2^1836532644 is an apocalyptic number.

It is an amenable number.

1836532644 is an abundant number, since it is smaller than the sum of its proper divisors (2704003356).

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

1836532644 is a wasteful number, since it uses less digits than its factorization.

1836532644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6412 (or 6410 counting only the distinct ones).

The product of its digits is 414720, while the sum is 42.

The square root of 1836532644 is about 42854.7855437406. The cubic root of 1836532644 is about 1224.6149324757.

The spelling of 1836532644 in words is "one billion, eight hundred thirty-six million, five hundred thirty-two thousand, six hundred forty-four".