1230229188 has 96 divisors (see below), whose sum is σ = 3236352000. Its totient is φ = 404103168.

The previous prime is 1230229177. The next prime is 1230229223. The reversal of 1230229188 is 8819220321.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3524838 + ... + 3525186.

It is an arithmetic number, because the mean of its divisors is an integer number (33712000).

Almost surely, 2^1230229188 is an apocalyptic number.

1230229188 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230229188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1618176000).

1230229188 is an abundant number, since it is smaller than the sum of its proper divisors (2006122812).

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

1230229188 is a wasteful number, since it uses less digits than its factorization.

1230229188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1230229188 is about 35074.6231341122. The cubic root of 1230229188 is about 1071.5078133849.

It can be divided in two parts, 12 and 30229188, that added together give a triangular number (30229200 = T₇₇₇₅).

The spelling of 1230229188 in words is "one billion, two hundred thirty million, two hundred twenty-nine thousand, one hundred eighty-eight".