1866336 has 24 divisors (see below), whose sum is σ = 4899384. Its totient is φ = 622080.

The previous prime is 1866331. The next prime is 1866341. The reversal of 1866336 is 6336681.

It is an interprime number because it is at equal distance from previous prime (1866331) and next prime (1866341).

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a junction number, because it is equal to n+sod(n) for n = 1866297 and 1866306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1866331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9625 + ... + 9816.

It is an arithmetic number, because the mean of its divisors is an integer number (204141).

2^1866336 is an apocalyptic number.

1866336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1866336 is an abundant number, since it is smaller than the sum of its proper divisors (3033048).

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

1866336 is a wasteful number, since it uses less digits than its factorization.

1866336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19454 (or 19446 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 1866336 is about 1366.1390851593. The cubic root of 1866336 is about 123.1203792059.

The spelling of 1866336 in words is "one million, eight hundred sixty-six thousand, three hundred thirty-six".