20028248 has 32 divisors (see below), whose sum is σ = 39152160. Its totient is φ = 9596160.

The previous prime is 20028221. The next prime is 20028257. The reversal of 20028248 is 84282002.

It is a super-2 number, since 2×20028248² = 802261435899008, which contains 22 as substring.

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, 20540 + ... + 21492.

It is an arithmetic number, because the mean of its divisors is an integer number (1223505).

Almost surely, 2^20028248 is an apocalyptic number.

It is an amenable number.

20028248 is a deficient number, since it is larger than the sum of its proper divisors (19123912).

20028248 is a wasteful number, since it uses less digits than its factorization.

20028248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067 (or 1063 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 20028248 is about 4475.2930630295. The cubic root of 20028248 is about 271.5694963223.

The spelling of 20028248 in words is "twenty million, twenty-eight thousand, two hundred forty-eight".