618849792 has 240 divisors, whose sum is σ = 2020384080. Its totient is φ = 180633600.

The previous prime is 618849773. The next prime is 618849797. The reversal of 618849792 is 297948816.

618849792 is a `hidden beast` number, since 61 + 8 + 8 + 497 + 92 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618849797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1469742 + ... + 1470162.

It is an arithmetic number, because the mean of its divisors is an integer number (8418267).

Almost surely, 2^618849792 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 618849792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1010192040).

618849792 is an abundant number, since it is smaller than the sum of its proper divisors (1401534288).

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

618849792 is a wasteful number, since it uses less digits than its factorization.

618849792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 466 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 618849792 is about 24876.6917414676. The cubic root of 618849792 is about 852.1742683929.

The spelling of 618849792 in words is "six hundred eighteen million, eight hundred forty-nine thousand, seven hundred ninety-two".