20803260 has 24 divisors (see below), whose sum is σ = 58249296. Its totient is φ = 5547520.

The previous prime is 20803259. The next prime is 20803267. The reversal of 20803260 is 6230802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20803267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173301 + ... + 173420.

It is an arithmetic number, because the mean of its divisors is an integer number (2427054).

Almost surely, 2^20803260 is an apocalyptic number.

20803260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20803260 is an abundant number, since it is smaller than the sum of its proper divisors (37446036).

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

20803260 is a wasteful number, since it uses less digits than its factorization.

20803260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346733 (or 346731 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 20803260 is about 4561.0590875366. The cubic root of 20803260 is about 275.0281403710.

The spelling of 20803260 in words is "twenty million, eight hundred three thousand, two hundred sixty".