20536104 has 16 divisors (see below), whose sum is σ = 51340320. Its totient is φ = 6845360.

The previous prime is 20536091. The next prime is 20536123. The reversal of 20536104 is 40163502.

It is a happy 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, 427812 + ... + 427859.

It is an arithmetic number, because the mean of its divisors is an integer number (3208770).

Almost surely, 2^20536104 is an apocalyptic number.

20536104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20536104 is an abundant number, since it is smaller than the sum of its proper divisors (30804216).

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

20536104 is a wasteful number, since it uses less digits than its factorization.

20536104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855680 (or 855676 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 20536104 is about 4531.6778349746. The cubic root of 20536104 is about 273.8457582888.

Adding to 20536104 its reverse (40163502), we get a palindrome (60699606).

The spelling of 20536104 in words is "twenty million, five hundred thirty-six thousand, one hundred four".