18241933 has 4 divisors (see below), whose sum is σ = 18666208. Its totient is φ = 17817660.

The previous prime is 18241879. The next prime is 18241939. The reversal of 18241933 is 33914281.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18241933 - 2¹⁷ = 18110861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18241895 and 18241904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18241939) 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, 212073 + ... + 212158.

It is an arithmetic number, because the mean of its divisors is an integer number (4666552).

Almost surely, 2^18241933 is an apocalyptic number.

It is an amenable number.

18241933 is a deficient number, since it is larger than the sum of its proper divisors (424275).

18241933 is an equidigital number, since it uses as much as digits as its factorization.

18241933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424274.

The product of its digits is 5184, while the sum is 31.

The square root of 18241933 is about 4271.0575973639. The cubic root of 18241933 is about 263.2430730912.

The spelling of 18241933 in words is "eighteen million, two hundred forty-one thousand, nine hundred thirty-three".