20104260 has 96 divisors (see below), whose sum is σ = 62318592. Its totient is φ = 4801920.

The previous prime is 20104241. The next prime is 20104307. The reversal of 20104260 is 6240102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54597 + ... + 54963.

It is an arithmetic number, because the mean of its divisors is an integer number (649152).

Almost surely, 2^20104260 is an apocalyptic number.

20104260 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 20104260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31159296).

20104260 is an abundant number, since it is smaller than the sum of its proper divisors (42214332).

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

20104260 is a wasteful number, since it uses less digits than its factorization.

20104260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20104260 is about 4483.7774253413. Note that the first 3 decimals coincide. The cubic root of 20104260 is about 271.9126197117.

Adding to 20104260 its reverse (6240102), we get a palindrome (26344362).

It can be divided in two parts, 201042 and 60, that added together give a palindrome (201102).

The spelling of 20104260 in words is "twenty million, one hundred four thousand, two hundred sixty".