20283328 has 28 divisors (see below), whose sum is σ = 43347640. Its totient is φ = 9361152.

The previous prime is 20283323. The next prime is 20283343. The reversal of 20283328 is 82338202.

It is a super-2 number, since 2×20283328² = 822826789511168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20283296 and 20283305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20283323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11358 + ... + 13021.

It is an arithmetic number, because the mean of its divisors is an integer number (1548130).

Almost surely, 2^20283328 is an apocalyptic number.

It is an amenable number.

20283328 is an abundant number, since it is smaller than the sum of its proper divisors (23064312).

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

20283328 is a wasteful number, since it uses less digits than its factorization.

20283328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24404 (or 24394 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 20283328 is about 4503.7015886935. The cubic root of 20283328 is about 272.7175402857.

It can be divided in two parts, 2028 and 3328, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 20283328 in words is "twenty million, two hundred eighty-three thousand, three hundred twenty-eight".