20833000 has 64 divisors (see below), whose sum is σ = 49533120. Its totient is φ = 8200000.

The previous prime is 20832997. The next prime is 20833013. The reversal of 20833000 is 33802.

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, 82875 + ... + 83125.

It is an arithmetic number, because the mean of its divisors is an integer number (773955).

Almost surely, 2^20833000 is an apocalyptic number.

20833000 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 20833000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24766560).

20833000 is an abundant number, since it is smaller than the sum of its proper divisors (28700120).

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

20833000 is a wasteful number, since it uses less digits than its factorization.

20833000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 20833000 is about 4564.3181308932. The cubic root of 20833000 is about 275.1591365435.

Adding to 20833000 its reverse (33802), we get a palindrome (20866802).

The spelling of 20833000 in words is "twenty million, eight hundred thirty-three thousand".