20384104 has 24 divisors (see below), whose sum is σ = 41389110. Its totient is φ = 9407424.

The previous prime is 20384101. The next prime is 20384113. The reversal of 20384104 is 40148302.

It can be written as a sum of positive squares in 3 ways, for example, as 4368100 + 16016004 = 2090^2 + 4002^2 .

It is not an unprimeable number, because it can be changed into a prime (20384101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6187 + ... + 8890.

Almost surely, 2^20384104 is an apocalyptic number.

It is an amenable number.

20384104 is an abundant number, since it is smaller than the sum of its proper divisors (21005006).

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

20384104 is a wasteful number, since it uses less digits than its factorization.

20384104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15109 (or 15092 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 20384104 is about 4514.8758565436. The cubic root of 20384104 is about 273.1684523479.

It can be divided in two parts, 20384 and 104, that multiplied together give a square (2119936 = 1456²).

The spelling of 20384104 in words is "twenty million, three hundred eighty-four thousand, one hundred four".