618928 has 20 divisors (see below), whose sum is σ = 1214208. Its totient is φ = 305600.

The previous prime is 618913. The next prime is 618929. The reversal of 618928 is 829816.

It is a junction number, because it is equal to n+sod(n) for n = 618893 and 618902.

It is not an unprimeable number, because it can be changed into a prime (618929) by changing a digit.

618928 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1425 + ... + 1807.

2⁶¹⁸⁹²⁸ is an apocalyptic number.

It is an amenable number.

618928 is a deficient number, since it is larger than the sum of its proper divisors (595280).

618928 is a wasteful number, since it uses less digits than its factorization.

618928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492 (or 486 counting only the distinct ones).

The product of its digits is 6912, while the sum is 34.

The square root of 618928 is about 786.7197722188. The cubic root of 618928 is about 85.2210165115.

The spelling of 618928 in words is "six hundred eighteen thousand, nine hundred twenty-eight".