1866108 has 12 divisors (see below), whose sum is σ = 4354280. Its totient is φ = 622032.

The previous prime is 1866101. The next prime is 1866113. The reversal of 1866108 is 8016681.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1866101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77743 + ... + 77766.

2^1866108 is an apocalyptic number.

It is an amenable number.

1866108 is an abundant number, since it is smaller than the sum of its proper divisors (2488172).

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

1866108 is a wasteful number, since it uses less digits than its factorization.

1866108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155516 (or 155514 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1866108 is about 1366.0556357631. The cubic root of 1866108 is about 123.1153653553.

The spelling of 1866108 in words is "one million, eight hundred sixty-six thousand, one hundred eight".