20416104 has 64 divisors (see below), whose sum is σ = 58560000. Its totient is φ = 6583680.

The previous prime is 20416093. The next prime is 20416117. The reversal of 20416104 is 40161402.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 5172 + ... + 8220.

It is an arithmetic number, because the mean of its divisors is an integer number (915000).

Almost surely, 2^20416104 is an apocalyptic number.

20416104 is a gapful number since it is divisible by the number (24) 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 20416104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29280000).

20416104 is an abundant number, since it is smaller than the sum of its proper divisors (38143896).

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

20416104 is a wasteful number, since it uses less digits than its factorization.

20416104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3095 (or 3085 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 20416104 is about 4518.4183073284. The cubic root of 20416104 is about 273.3113221749.

Adding to 20416104 its reverse (40161402), we get a palindrome (60577506).

The spelling of 20416104 in words is "twenty million, four hundred sixteen thousand, one hundred four".