20844102 has 32 divisors (see below), whose sum is σ = 44553600. Its totient is φ = 6481728.

The previous prime is 20844079. The next prime is 20844119. The reversal of 20844102 is 20144802.

It is a congruent 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, 6274 + ... + 9002.

It is an arithmetic number, because the mean of its divisors is an integer number (1392300).

Almost surely, 2^20844102 is an apocalyptic number.

20844102 is an abundant number, since it is smaller than the sum of its proper divisors (23709498).

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

20844102 is a wasteful number, since it uses less digits than its factorization.

20844102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 20844102 is about 4565.5341418064. The cubic root of 20844102 is about 275.2080057135.

Adding to 20844102 its reverse (20144802), we get a palindrome (40988904).

The spelling of 20844102 in words is "twenty million, eight hundred forty-four thousand, one hundred two".