188134452 has 72 divisors (see below), whose sum is σ = 521277120. Its totient is φ = 56737920.

The previous prime is 188134391. The next prime is 188134469. The reversal of 188134452 is 254431881.

188134452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91249 + ... + 93287.

It is an arithmetic number, because the mean of its divisors is an integer number (7239960).

Almost surely, 2^188134452 is an apocalyptic number.

188134452 is a gapful number since it is divisible by the number (12) 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 188134452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260638560).

188134452 is an abundant number, since it is smaller than the sum of its proper divisors (333142668).

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

188134452 is a wasteful number, since it uses less digits than its factorization.

188134452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293 (or 2288 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 188134452 is about 13716.2112844619. The cubic root of 188134452 is about 573.0019644862.

The spelling of 188134452 in words is "one hundred eighty-eight million, one hundred thirty-four thousand, four hundred fifty-two".