20852188 has 12 divisors (see below), whose sum is σ = 41704432. Its totient is φ = 8936640.

The previous prime is 20852171. The next prime is 20852197. The reversal of 20852188 is 88125802.

It is a happy number.

20852188 is an admirable number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372333 + ... + 372388.

Almost surely, 2^20852188 is an apocalyptic number.

20852188 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20852188 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20852188 is a wasteful number, since it uses less digits than its factorization.

20852188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744732 (or 744730 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 20852188 is about 4566.4196040224. The cubic root of 20852188 is about 275.2435880289.

The spelling of 20852188 in words is "twenty million, eight hundred fifty-two thousand, one hundred eighty-eight".