618628312 has 16 divisors (see below), whose sum is σ = 1197345600. Its totient is φ = 299336160.

The previous prime is 618628289. The next prime is 618628313. The reversal of 618628312 is 213826816.

It is a happy number.

618628312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618628313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1246987 + ... + 1247482.

It is an arithmetic number, because the mean of its divisors is an integer number (74834100).

Almost surely, 2^618628312 is an apocalyptic number.

618628312 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

618628312 is a deficient number, since it is larger than the sum of its proper divisors (578717288).

618628312 is a wasteful number, since it uses less digits than its factorization.

618628312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494506 (or 2494502 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 618628312 is about 24872.2397865572. The cubic root of 618628312 is about 852.0725947827.

The spelling of 618628312 in words is "six hundred eighteen million, six hundred twenty-eight thousand, three hundred twelve".