618078384 has 320 divisors, whose sum is σ = 2344135680. Its totient is φ = 150958080.

The previous prime is 618078353. The next prime is 618078397. The reversal of 618078384 is 483870816.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 564942 + ... + 566034.

It is an arithmetic number, because the mean of its divisors is an integer number (7325424).

Almost surely, 2^618078384 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 618078384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1172067840).

618078384 is an abundant number, since it is smaller than the sum of its proper divisors (1726057296).

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

618078384 is a wasteful number, since it uses less digits than its factorization.

618078384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145 (or 1133 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 618078384 is about 24861.1822727721. The cubic root of 618078384 is about 851.8200373722.

The spelling of 618078384 in words is "six hundred eighteen million, seventy-eight thousand, three hundred eighty-four".