1228356168 has 32 divisors (see below), whose sum is σ = 3307113600. Its totient is φ = 377955648.

The previous prime is 1228356163. The next prime is 1228356169. The reversal of 1228356168 is 8616538221.

It is not an unprimeable number, because it can be changed into a prime (1228356163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1968208 + ... + 1968831.

It is an arithmetic number, because the mean of its divisors is an integer number (103347300).

Almost surely, 2^1228356168 is an apocalyptic number.

It is an amenable number.

1228356168 is an abundant number, since it is smaller than the sum of its proper divisors (2078757432).

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

1228356168 is a wasteful number, since it uses less digits than its factorization.

1228356168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3937061 (or 3937057 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 1228356168 is about 35047.9124627987. The cubic root of 1228356168 is about 1070.9637481071.

The spelling of 1228356168 in words is "one billion, two hundred twenty-eight million, three hundred fifty-six thousand, one hundred sixty-eight".