20803360 has 24 divisors (see below), whose sum is σ = 49148316. Its totient is φ = 8321280.

The previous prime is 20803303. The next prime is 20803373. The reversal of 20803360 is 6330802.

It can be written as a sum of positive squares in 2 ways, for example, as 17606416 + 3196944 = 4196^2 + 1788^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64851 + ... + 65170.

Almost surely, 2^20803360 is an apocalyptic number.

20803360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20803360 is an abundant number, since it is smaller than the sum of its proper divisors (28344956).

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

20803360 is a wasteful number, since it uses less digits than its factorization.

20803360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130036 (or 130028 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 20803360 is about 4561.0700498896. The cubic root of 20803360 is about 275.0285810515.

The spelling of 20803360 in words is "twenty million, eight hundred three thousand, three hundred sixty".