20841036 has 24 divisors (see below), whose sum is σ = 50744064. Its totient is φ = 6644880.

The previous prime is 20841011. The next prime is 20841049. The reversal of 20841036 is 63014802.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20840997 and 20841015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37480 + ... + 38031.

It is an arithmetic number, because the mean of its divisors is an integer number (2114336).

Almost surely, 2^20841036 is an apocalyptic number.

It is an amenable number.

20841036 is an abundant number, since it is smaller than the sum of its proper divisors (29903028).

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

20841036 is a wasteful number, since it uses less digits than its factorization.

20841036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75541 (or 75539 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 20841036 is about 4565.1983527553. The cubic root of 20841036 is about 275.1945114227.

Adding to 20841036 its reverse (63014802), we get a palindrome (83855838).

The spelling of 20841036 in words is "twenty million, eight hundred forty-one thousand, thirty-six".