20104854 has 32 divisors (see below), whose sum is σ = 50132736. Its totient is φ = 5221920.

The previous prime is 20104823. The next prime is 20104867. The reversal of 20104854 is 45840102.

It is a super-2 number, since 2×20104854² = 808410308722632, which contains 22 as substring.

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, 21297 + ... + 22220.

It is an arithmetic number, because the mean of its divisors is an integer number (1566648).

Almost surely, 2^20104854 is an apocalyptic number.

20104854 is an abundant number, since it is smaller than the sum of its proper divisors (30027882).

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

20104854 is a wasteful number, since it uses less digits than its factorization.

20104854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43540.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 20104854 is about 4483.8436636440. The cubic root of 20104854 is about 271.9152976600.

Adding to 20104854 its reverse (45840102), we get a palindrome (65944956).

It can be divided in two parts, 201048 and 54, that added together give a palindrome (201102).

The spelling of 20104854 in words is "twenty million, one hundred four thousand, eight hundred fifty-four".