20206104 has 16 divisors (see below), whose sum is σ = 50515320. Its totient is φ = 6735360.

The previous prime is 20206097. The next prime is 20206129. The reversal of 20206104 is 40160202.

It is a congruent number.

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, 420937 + ... + 420984.

Almost surely, 2^20206104 is an apocalyptic number.

20206104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20206104 is an abundant number, since it is smaller than the sum of its proper divisors (30309216).

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

20206104 is a wasteful number, since it uses less digits than its factorization.

20206104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841930 (or 841926 counting only the distinct ones).

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

The square root of 20206104 is about 4495.1200206446. The cubic root of 20206104 is about 272.3709974922.

Adding to 20206104 its reverse (40160202), we get a palindrome (60366306).

The spelling of 20206104 in words is "twenty million, two hundred six thousand, one hundred four".