234147186 has 120 divisors (see below), whose sum is σ = 657559980. Its totient is φ = 61725888.

The previous prime is 234147161. The next prime is 234147197. The reversal of 234147186 is 681741432.

It can be written as a sum of positive squares in 2 ways, for example, as 183467025 + 50680161 = 13545^2 + 7119^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 234147186.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 102060 + ... + 104328.

Almost surely, 2^234147186 is an apocalyptic number.

234147186 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 234147186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328779990).

234147186 is an abundant number, since it is smaller than the sum of its proper divisors (423412794).

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

234147186 is a wasteful number, since it uses less digits than its factorization.

234147186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310 (or 2294 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 234147186 is about 15301.8687094093. The cubic root of 234147186 is about 616.3531893302.

The spelling of 234147186 in words is "two hundred thirty-four million, one hundred forty-seven thousand, one hundred eighty-six".