20288148 has 24 divisors (see below), whose sum is σ = 47940480. Its totient is φ = 6676800.

The previous prime is 20288141. The next prime is 20288159. The reversal of 20288148 is 84188202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20288141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9753 + ... + 11648.

It is an arithmetic number, because the mean of its divisors is an integer number (1997520).

Almost surely, 2^20288148 is an apocalyptic number.

It is an amenable number.

20288148 is an abundant number, since it is smaller than the sum of its proper divisors (27652332).

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

20288148 is a wasteful number, since it uses less digits than its factorization.

20288148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21487 (or 21485 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 20288148 is about 4504.2366722898. The cubic root of 20288148 is about 272.7391408573.

The spelling of 20288148 in words is "twenty million, two hundred eighty-eight thousand, one hundred forty-eight".