252220188 has 24 divisors (see below), whose sum is σ = 642015360. Its totient is φ = 76430320.

The previous prime is 252220159. The next prime is 252220201. The reversal of 252220188 is 881022252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 955248 + ... + 955511.

It is an arithmetic number, because the mean of its divisors is an integer number (26750640).

Almost surely, 2^252220188 is an apocalyptic number.

It is an amenable number.

252220188 is an abundant number, since it is smaller than the sum of its proper divisors (389795172).

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

252220188 is a wasteful number, since it uses less digits than its factorization.

252220188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910777 (or 1910775 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 252220188 is about 15881.4416222206. The cubic root of 252220188 is about 631.8198726904.

The spelling of 252220188 in words is "two hundred fifty-two million, two hundred twenty thousand, one hundred eighty-eight".