618896484 has 96 divisors (see below), whose sum is σ = 1675587200. Its totient is φ = 197354880.

The previous prime is 618896483. The next prime is 618896491. The reversal of 618896484 is 484698816.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 618896484.

It is not an unprimeable number, because it can be changed into a prime (618896483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242487 + ... + 245025.

Almost surely, 2^618896484 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 618896484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (837793600).

618896484 is an abundant number, since it is smaller than the sum of its proper divisors (1056690716).

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

618896484 is a wasteful number, since it uses less digits than its factorization.

618896484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650 (or 2642 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The square root of 618896484 is about 24877.6301926048. The cubic root of 618896484 is about 852.1956999372.

The spelling of 618896484 in words is "six hundred eighteen million, eight hundred ninety-six thousand, four hundred eighty-four".