188274252 has 54 divisors (see below), whose sum is σ = 468679708. Its totient is φ = 58812928.

The previous prime is 188274193. The next prime is 188274257. The reversal of 188274252 is 252472881.

188274252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 188274252.

It is not an unprimeable number, because it can be changed into a prime (188274257) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 807928 + ... + 808160.

Almost surely, 2^188274252 is an apocalyptic number.

188274252 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 188274252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234339854).

188274252 is an abundant number, since it is smaller than the sum of its proper divisors (280405456).

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

188274252 is a wasteful number, since it uses less digits than its factorization.

188274252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507 (or 255 counting only the distinct ones).

The product of its digits is 71680, while the sum is 39.

The square root of 188274252 is about 13721.3064975606. The cubic root of 188274252 is about 573.1438591794.

The spelling of 188274252 in words is "one hundred eighty-eight million, two hundred seventy-four thousand, two hundred fifty-two".