20869024 has 48 divisors (see below), whose sum is σ = 45341856. Its totient is φ = 9376000.

The previous prime is 20869003. The next prime is 20869091. The reversal of 20869024 is 42096802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35259 + ... + 35845.

It is an arithmetic number, because the mean of its divisors is an integer number (944622).

Almost surely, 2^20869024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20869024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22670928).

20869024 is an abundant number, since it is smaller than the sum of its proper divisors (24472832).

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

20869024 is a wasteful number, since it uses less digits than its factorization.

20869024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709 (or 701 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 20869024 is about 4568.2626894696. The cubic root of 20869024 is about 275.3176450767.

The spelling of 20869024 in words is "twenty million, eight hundred sixty-nine thousand, twenty-four".