1866314196 has 120 divisors (see below), whose sum is σ = 5254381440. Its totient is φ = 575486208.

The previous prime is 1866314183. The next prime is 1866314207. The reversal of 1866314196 is 6914136681.

1866314196 is a `hidden beast` number, since 1 + 8 + 6 + 631 + 4 + 1 + 9 + 6 = 666.

It is a super-2 number, since 2×1866314196² = 6966257356382252832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 322101 + ... + 327843.

It is an arithmetic number, because the mean of its divisors is an integer number (43786512).

Almost surely, 2^1866314196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1866314196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2627190720).

1866314196 is an abundant number, since it is smaller than the sum of its proper divisors (3388067244).

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

1866314196 is a wasteful number, since it uses less digits than its factorization.

1866314196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5835 (or 5824 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 1866314196 is about 43200.8587414649. The cubic root of 1866314196 is about 1231.1989974115.

The spelling of 1866314196 in words is "one billion, eight hundred sixty-six million, three hundred fourteen thousand, one hundred ninety-six".