20188452 has 24 divisors (see below), whose sum is σ = 49877856. Its totient is φ = 6333568.

The previous prime is 20188451. The next prime is 20188459. The reversal of 20188452 is 25488102.

It is not an unprimeable number, because it can be changed into a prime (20188451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49278 + ... + 49685.

It is an arithmetic number, because the mean of its divisors is an integer number (2078244).

Almost surely, 2^20188452 is an apocalyptic number.

It is an amenable number.

20188452 is an abundant number, since it is smaller than the sum of its proper divisors (29689404).

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

20188452 is a wasteful number, since it uses less digits than its factorization.

20188452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98987 (or 98985 counting only the distinct ones).

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

The square root of 20188452 is about 4493.1561290478. The cubic root of 20188452 is about 272.2916601860.

The spelling of 20188452 in words is "twenty million, one hundred eighty-eight thousand, four hundred fifty-two".