618944 has 28 divisors (see below), whose sum is σ = 1295400. Its totient is φ = 292608.

The previous prime is 618941. The next prime is 618971. The reversal of 618944 is 449816.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 618944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618941) 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, 962 + ... + 1470.

2⁶¹⁸⁹⁴⁴ is an apocalyptic number.

618944 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (647700).

618944 is an abundant number, since it is smaller than the sum of its proper divisors (676456).

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

618944 is a wasteful number, since it uses less digits than its factorization.

618944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 530 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 618944 is about 786.7299409581. The cubic root of 618944 is about 85.2217508589.

The spelling of 618944 in words is "six hundred eighteen thousand, nine hundred forty-four".