618979228 has 12 divisors (see below), whose sum is σ = 1237958512. Its totient is φ = 265276800.

The previous prime is 618979217. The next prime is 618979241. The reversal of 618979228 is 822979816.

618979228 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11053173 + ... + 11053228.

Almost surely, 2^618979228 is an apocalyptic number.

It is an amenable number.

618979228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

618979228 is a wasteful number, since it uses less digits than its factorization.

618979228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22106412 (or 22106410 counting only the distinct ones).

The product of its digits is 870912, while the sum is 52.

The square root of 618979228 is about 24879.2931571618. The cubic root of 618979228 is about 852.2336766374.

The spelling of 618979228 in words is "six hundred eighteen million, nine hundred seventy-nine thousand, two hundred twenty-eight".