1186494228 has 36 divisors (see below), whose sum is σ = 3008683860. Its totient is φ = 394246656.

The previous prime is 1186494191. The next prime is 1186494233. The reversal of 1186494228 is 8224946811.

1186494228 is a `hidden beast` number, since 1 + 186 + 49 + 422 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 213802884 + 972691344 = 14622^2 + 31188^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40573 + ... + 63396.

Almost surely, 2^1186494228 is an apocalyptic number.

1186494228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1186494228 is an abundant number, since it is smaller than the sum of its proper divisors (1822189632).

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

1186494228 is a wasteful number, since it uses less digits than its factorization.

1186494228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104296 (or 104291 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 1186494228 is about 34445.5255149344. The cubic root of 1186494228 is about 1058.6568451098.

The spelling of 1186494228 in words is "one billion, one hundred eighty-six million, four hundred ninety-four thousand, two hundred twenty-eight".