20848900 has 18 divisors (see below), whose sum is σ = 45242330. Its totient is φ = 8339520.

The previous prime is 20848897. The next prime is 20848901. The reversal of 20848900 is 984802.

It can be written as a sum of positive squares in 3 ways, for example, as 652864 + 20196036 = 808^2 + 4494^2 .

It is not an unprimeable number, because it can be changed into a prime (20848901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104145 + ... + 104344.

Almost surely, 2^20848900 is an apocalyptic number.

20848900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20848900 is an abundant number, since it is smaller than the sum of its proper divisors (24393430).

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

20848900 is a wasteful number, since it uses less digits than its factorization.

20848900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208503 (or 208496 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 20848900 is about 4566.0595703517. The cubic root of 20848900 is about 275.2291203467.

The spelling of 20848900 in words is "twenty million, eight hundred forty-eight thousand, nine hundred".