618988608 has 224 divisors, whose sum is σ = 2111166720. Its totient is φ = 174182400.

The previous prime is 618988607. The next prime is 618988619. The reversal of 618988608 is 806889816.

It is a tau number, because it is divible by the number of its divisors (224).

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

It is not an unprimeable number, because it can be changed into a prime (618988607) 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, 882658 + ... + 883358.

Almost surely, 2^618988608 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 618988608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1055583360).

618988608 is an abundant number, since it is smaller than the sum of its proper divisors (1492178112).

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

618988608 is a wasteful number, since it uses less digits than its factorization.

618988608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 54.

The square root of 618988608 is about 24879.4816666264. The cubic root of 618988608 is about 852.2379815269.

The spelling of 618988608 in words is "six hundred eighteen million, nine hundred eighty-eight thousand, six hundred eight".