618744 has 64 divisors (see below), whose sum is σ = 1843200. Its totient is φ = 169344.

The previous prime is 618719. The next prime is 618799. The reversal of 618744 is 447816.

618744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

Its product of digits (5376) is a multiple of the sum of its prime divisors (168).

It is a congruent number.

It is an unprimeable number.

618744 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4809 + ... + 4935.

It is an arithmetic number, because the mean of its divisors is an integer number (28800).

2⁶¹⁸⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (921600).

618744 is an abundant number, since it is smaller than the sum of its proper divisors (1224456).

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

618744 is a wasteful number, since it uses less digits than its factorization.

618744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 168 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 618744 is about 786.6028222680. The cubic root of 618744 is about 85.2125706066.

The spelling of 618744 in words is "six hundred eighteen thousand, seven hundred forty-four".