20368936 has 16 divisors (see below), whose sum is σ = 43647840. Its totient is φ = 8729520.

The previous prime is 20368927. The next prime is 20368951. The reversal of 20368936 is 63986302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20368895 and 20368904.

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, 181810 + ... + 181921.

It is an arithmetic number, because the mean of its divisors is an integer number (2727990).

Almost surely, 2^20368936 is an apocalyptic number.

It is an amenable number.

20368936 is an abundant number, since it is smaller than the sum of its proper divisors (23278904).

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

20368936 is a wasteful number, since it uses less digits than its factorization.

20368936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363744 (or 363740 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 20368936 is about 4513.1957635361. The cubic root of 20368936 is about 273.1006798125.

The spelling of 20368936 in words is "twenty million, three hundred sixty-eight thousand, nine hundred thirty-six".