1836642 has 16 divisors (see below), whose sum is σ = 3833280. Its totient is φ = 585552.

The previous prime is 1836641. The next prime is 1836647. The reversal of 1836642 is 2466381.

It is not an unprimeable number, because it can be changed into a prime (1836641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6517 + ... + 6792.

It is an arithmetic number, because the mean of its divisors is an integer number (239580).

2^1836642 is an apocalyptic number.

1836642 is an abundant number, since it is smaller than the sum of its proper divisors (1996638).

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

1836642 is a wasteful number, since it uses less digits than its factorization.

1836642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13337.

The product of its digits is 6912, while the sum is 30.

The square root of 1836642 is about 1355.2276561523. The cubic root of 1836642 is about 122.4639238484.

The spelling of 1836642 in words is "one million, eight hundred thirty-six thousand, six hundred forty-two".