1228659168 has 216 divisors, whose sum is σ = 3754261224. Its totient is φ = 351521280.

The previous prime is 1228659143. The next prime is 1228659181. The reversal of 1228659168 is 8619568221.

1228659168 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1228659168² = 3019206702220904448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4193230 + ... + 4193522.

It is an arithmetic number, because the mean of its divisors is an integer number (17380839).

Almost surely, 2^1228659168 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 1228659168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1877130612).

1228659168 is an abundant number, since it is smaller than the sum of its proper divisors (2525602056).

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

1228659168 is a wasteful number, since it uses less digits than its factorization.

1228659168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 328 counting only the distinct ones).

The product of its digits is 414720, while the sum is 48.

The square root of 1228659168 is about 35052.2348502916. The cubic root of 1228659168 is about 1071.0517994791.

The spelling of 1228659168 in words is "one billion, two hundred twenty-eight million, six hundred fifty-nine thousand, one hundred sixty-eight".