20834506 has 48 divisors (see below), whose sum is σ = 40219200. Its totient is φ = 8085000.

The previous prime is 20834491. The next prime is 20834509. The reversal of 20834506 is 60543802.

It is not an unprimeable number, because it can be changed into a prime (20834509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82881 + ... + 83131.

It is an arithmetic number, because the mean of its divisors is an integer number (837900).

Almost surely, 2^20834506 is an apocalyptic number.

20834506 is a deficient number, since it is larger than the sum of its proper divisors (19384694).

20834506 is a wasteful number, since it uses less digits than its factorization.

20834506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 20834506 is about 4564.4831032659. The cubic root of 20834506 is about 275.1657667244.

The spelling of 20834506 in words is "twenty million, eight hundred thirty-four thousand, five hundred six".