20814834 has 16 divisors (see below), whose sum is σ = 44078688. Its totient is φ = 6530112.

The previous prime is 20814811. The next prime is 20814863. The reversal of 20814834 is 43841802.

It is a Curzon number.

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, 101932 + ... + 102135.

It is an arithmetic number, because the mean of its divisors is an integer number (2754918).

Almost surely, 2^20814834 is an apocalyptic number.

20814834 is an abundant number, since it is smaller than the sum of its proper divisors (23263854).

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

20814834 is a wasteful number, since it uses less digits than its factorization.

20814834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204089.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 20814834 is about 4562.3276953766. The cubic root of 20814834 is about 275.0791353522.

The spelling of 20814834 in words is "twenty million, eight hundred fourteen thousand, eight hundred thirty-four".