20802200 has 48 divisors (see below), whose sum is σ = 49416480. Its totient is φ = 8140160.

The previous prime is 20802167. The next prime is 20802233. The reversal of 20802200 is 220802.

It is an interprime number because it is at equal distance from previous prime (20802167) and next prime (20802233).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 8294 + ... + 10506.

It is an arithmetic number, because the mean of its divisors is an integer number (1029510).

Almost surely, 2^20802200 is an apocalyptic number.

20802200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20802200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24708240).

20802200 is an abundant number, since it is smaller than the sum of its proper divisors (28614280).

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

20802200 is a wasteful number, since it uses less digits than its factorization.

20802200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276 (or 2267 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 20802200 is about 4560.9428849746. The cubic root of 20802200 is about 275.0234690714.

The spelling of 20802200 in words is "twenty million, eight hundred two thousand, two hundred".