618741144 has 96 divisors (see below), whose sum is σ = 1942237440. Its totient is φ = 174283200.

The previous prime is 618741143. The next prime is 618741169. The reversal of 618741144 is 441147816.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 618741099 and 618741108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618741143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27139 + ... + 44429.

It is an arithmetic number, because the mean of its divisors is an integer number (20231640).

Almost surely, 2^618741144 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 618741144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (971118720).

618741144 is an abundant number, since it is smaller than the sum of its proper divisors (1323496296).

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

618741144 is a wasteful number, since it uses less digits than its factorization.

618741144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17381 (or 17374 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 618741144 is about 24874.5079147307. The cubic root of 618741144 is about 852.1243949826.

The spelling of 618741144 in words is "six hundred eighteen million, seven hundred forty-one thousand, one hundred forty-four".