20567104 has 28 divisors (see below), whose sum is σ = 41246044. Its totient is φ = 10174464.

The previous prime is 20567089. The next prime is 20567137. The reversal of 20567104 is 40176502.

It can be written as a sum of positive squares in 2 ways, for example, as 14807104 + 5760000 = 3848^2 + 2400^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4552 + ... + 7864.

It is an arithmetic number, because the mean of its divisors is an integer number (1473073).

Almost surely, 2^20567104 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 20567104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20623022).

20567104 is an abundant number, since it is smaller than the sum of its proper divisors (20678940).

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

20567104 is an equidigital number, since it uses as much as digits as its factorization.

20567104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422 (or 3412 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 20567104 is about 4535.0969118642. The cubic root of 20567104 is about 273.9834824078.

The spelling of 20567104 in words is "twenty million, five hundred sixty-seven thousand, one hundred four".