1836564 has 24 divisors (see below), whose sum is σ = 4424448. Its totient is φ = 592320.

The previous prime is 1836563. The next prime is 1836581. The reversal of 1836564 is 4656381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1836563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2097 + ... + 2840.

It is an arithmetic number, because the mean of its divisors is an integer number (184352).

2^1836564 is an apocalyptic number.

It is an amenable number.

1836564 is an abundant number, since it is smaller than the sum of its proper divisors (2587884).

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

1836564 is a wasteful number, since it uses less digits than its factorization.

1836564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4975 (or 4973 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 1836564 is about 1355.1988783939. The cubic root of 1836564 is about 122.4621901915.

The spelling of 1836564 in words is "one million, eight hundred thirty-six thousand, five hundred sixty-four".