618320472 has 256 divisors, whose sum is σ = 2015539200. Its totient is φ = 153454080.

The previous prime is 618320459. The next prime is 618320473. The reversal of 618320472 is 274023816.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618320473) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5778643 + ... + 5778749.

It is an arithmetic number, because the mean of its divisors is an integer number (7873200).

Almost surely, 2^618320472 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 618320472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1007769600).

618320472 is an abundant number, since it is smaller than the sum of its proper divisors (1397218728).

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

618320472 is a wasteful number, since it uses less digits than its factorization.

618320472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 618320472 is about 24866.0505911172. The cubic root of 618320472 is about 851.9312360470.

The spelling of 618320472 in words is "six hundred eighteen million, three hundred twenty thousand, four hundred seventy-two".