1865241 has 32 divisors (see below), whose sum is σ = 3225600. Its totient is φ = 1043280.

The previous prime is 1865233. The next prime is 1865243. The reversal of 1865241 is 1425681.

1865241 is a `hidden beast` number, since 1 + 8 + 652 + 4 + 1 = 666.

It is not a de Polignac number, because 1865241 - 2³ = 1865233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

1865241 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1865243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13350 + ... + 13488.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

2^1865241 is an apocalyptic number.

It is an amenable number.

1865241 is a deficient number, since it is larger than the sum of its proper divisors (1360359).

1865241 is a wasteful number, since it uses less digits than its factorization.

1865241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 220 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 1865241 is about 1365.7382618935. The cubic root of 1865241 is about 123.0962957987.

The spelling of 1865241 in words is "one million, eight hundred sixty-five thousand, two hundred forty-one".