20268304 has 80 divisors (see below), whose sum is σ = 47421568. Its totient is φ = 8211456.

The previous prime is 20268293. The next prime is 20268317. The reversal of 20268304 is 40386202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277612 + ... + 277684.

Almost surely, 2^20268304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20268304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23710784).

20268304 is an abundant number, since it is smaller than the sum of its proper divisors (27153264).

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

20268304 is a wasteful number, since it uses less digits than its factorization.

20268304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 20268304 is about 4502.0333184018. The cubic root of 20268304 is about 272.6501890703.

It can be divided in two parts, 20 and 268304, that added together give a square (268324 = 518²).

The spelling of 20268304 in words is "twenty million, two hundred sixty-eight thousand, three hundred four".