20704834 has 8 divisors (see below), whose sum is σ = 31076928. Its totient is φ = 10345860.

The previous prime is 20704829. The next prime is 20704837. The reversal of 20704834 is 43840702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20704837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3339 + ... + 7249.

It is an arithmetic number, because the mean of its divisors is an integer number (3884616).

Almost surely, 2^20704834 is an apocalyptic number.

20704834 is a deficient number, since it is larger than the sum of its proper divisors (10372094).

20704834 is a wasteful number, since it uses less digits than its factorization.

20704834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6560.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 20704834 is about 4550.2564762879. The cubic root of 20704834 is about 274.5937096763.

The spelling of 20704834 in words is "twenty million, seven hundred four thousand, eight hundred thirty-four".