20189248 has 28 divisors (see below), whose sum is σ = 42174160. Its totient is φ = 9562752.

The previous prime is 20189233. The next prime is 20189291. The reversal of 20189248 is 84298102.

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, 7086 + ... + 9517.

It is an arithmetic number, because the mean of its divisors is an integer number (1506220).

Almost surely, 2^20189248 is an apocalyptic number.

It is an amenable number.

20189248 is an abundant number, since it is smaller than the sum of its proper divisors (21984912).

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

20189248 is a wasteful number, since it uses less digits than its factorization.

20189248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16634 (or 16624 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 20189248 is about 4493.2447073357. The cubic root of 20189248 is about 272.2952388212.

The spelling of 20189248 in words is "twenty million, one hundred eighty-nine thousand, two hundred forty-eight".