188007012 has 36 divisors (see below), whose sum is σ = 503196876. Its totient is φ = 58982400.

The previous prime is 188007011. The next prime is 188007019. The reversal of 188007012 is 210700881.

It can be written as a sum of positive squares in 2 ways, for example, as 165482496 + 22524516 = 12864^2 + 4746^2 .

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

It is a super-2 number, since 2×188007012² = 70693273122336288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188007011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152989 + ... + 154212.

It is an arithmetic number, because the mean of its divisors is an integer number (13977691).

Almost surely, 2^188007012 is an apocalyptic number.

188007012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

188007012 is an abundant number, since it is smaller than the sum of its proper divisors (315189864).

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

188007012 is a wasteful number, since it uses less digits than its factorization.

188007012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307228 (or 307223 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 188007012 is about 13711.5648997479. The cubic root of 188007012 is about 572.8725537303.

Adding to 188007012 its reverse (210700881), we get a palindrome (398707893).

The spelling of 188007012 in words is "one hundred eighty-eight million, seven thousand, twelve".