20841834 has 16 divisors (see below), whose sum is σ = 44890272. Its totient is φ = 6412848.

The previous prime is 20841823. The next prime is 20841853. The reversal of 20841834 is 43814802.

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, 133524 + ... + 133679.

It is an arithmetic number, because the mean of its divisors is an integer number (2805642).

Almost surely, 2^20841834 is an apocalyptic number.

20841834 is an abundant number, since it is smaller than the sum of its proper divisors (24048438).

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

20841834 is a wasteful number, since it uses less digits than its factorization.

20841834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267221.

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

The square root of 20841834 is about 4565.2857522832. The cubic root of 20841834 is about 275.1980237627.

The spelling of 20841834 in words is "twenty million, eight hundred forty-one thousand, eight hundred thirty-four".