1836816 has 40 divisors (see below), whose sum is σ = 5026464. Its totient is φ = 576000.

The previous prime is 1836811. The next prime is 1836827. The reversal of 1836816 is 6186381.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1836811) 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, 310 + ... + 1941.

2^1836816 is an apocalyptic number.

1836816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1836816 is an abundant number, since it is smaller than the sum of its proper divisors (3189648).

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

1836816 is a wasteful number, since it uses less digits than its factorization.

1836816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279 (or 2273 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 1836816 is about 1355.2918504883. The cubic root of 1836816 is about 122.4677910600.

It can be divided in two parts, 1836 and 816, that multiplied together give a square (1498176 = 1224²).

The spelling of 1836816 in words is "one million, eight hundred thirty-six thousand, eight hundred sixteen".