1863366 has 16 divisors (see below), whose sum is σ = 3855600. Its totient is φ = 599648.

The previous prime is 1863361. The next prime is 1863371. The reversal of 1863366 is 6633681.

It is an interprime number because it is at equal distance from previous prime (1863361) and next prime (1863371).

It is a super-3 number, since 3×1863366³ = 19409562900273335688, which contains 333 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1863361) 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, 5181 + ... + 5528.

It is an arithmetic number, because the mean of its divisors is an integer number (240975).

2^1863366 is an apocalyptic number.

1863366 is an abundant number, since it is smaller than the sum of its proper divisors (1992234).

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

1863366 is a wasteful number, since it uses less digits than its factorization.

1863366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10743.

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

The square root of 1863366 is about 1365.0516473746. The cubic root of 1863366 is about 123.0550351902.

The spelling of 1863366 in words is "one million, eight hundred sixty-three thousand, three hundred sixty-six".