1188458228 has 12 divisors (see below), whose sum is σ = 2080249920. Its totient is φ = 594101112.

The previous prime is 1188458221. The next prime is 1188458237. The reversal of 1188458228 is 8228548811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1188458221) 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, 9326 + ... + 49637.

It is an arithmetic number, because the mean of its divisors is an integer number (173354160).

Almost surely, 2^1188458228 is an apocalyptic number.

It is an amenable number.

1188458228 is a deficient number, since it is larger than the sum of its proper divisors (891791692).

1188458228 is a wasteful number, since it uses less digits than its factorization.

1188458228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64006 (or 64004 counting only the distinct ones).

The product of its digits is 327680, while the sum is 47.

The square root of 1188458228 is about 34474.0225097101. The cubic root of 1188458228 is about 1059.2406535028.

The spelling of 1188458228 in words is "one billion, one hundred eighty-eight million, four hundred fifty-eight thousand, two hundred twenty-eight".