618441 has 8 divisors (see below), whose sum is σ = 829344. Its totient is φ = 409920.

The previous prime is 618439. The next prime is 618463. The reversal of 618441 is 144816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 618441 - 2¹ = 618439 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (618421) 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, 145 + ... + 1121.

It is an arithmetic number, because the mean of its divisors is an integer number (103668).

2⁶¹⁸⁴⁴¹ is an apocalyptic number.

It is an amenable number.

618441 is a deficient number, since it is larger than the sum of its proper divisors (210903).

618441 is a wasteful number, since it uses less digits than its factorization.

618441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191.

The product of its digits is 768, while the sum is 24.

The square root of 618441 is about 786.4101983062. The cubic root of 618441 is about 85.1986587547.

The spelling of 618441 in words is "six hundred eighteen thousand, four hundred forty-one".