618801388 has 12 divisors (see below), whose sum is σ = 1088036152. Its totient is φ = 307933920.

The previous prime is 618801383. The next prime is 618801401. The reversal of 618801388 is 883108816.

It is not an unprimeable number, because it can be changed into a prime (618801383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365745 + ... + 367432.

Almost surely, 2^618801388 is an apocalyptic number.

It is an amenable number.

618801388 is a deficient number, since it is larger than the sum of its proper divisors (469234764).

618801388 is a wasteful number, since it uses less digits than its factorization.

618801388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733392 (or 733390 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 43.

The square root of 618801388 is about 24875.7188438847. The cubic root of 618801388 is about 852.1520499055.

The spelling of 618801388 in words is "six hundred eighteen million, eight hundred one thousand, three hundred eighty-eight".