20709094 has 16 divisors (see below), whose sum is σ = 37590048. Its totient is φ = 8353152.

The previous prime is 20709089. The next prime is 20709121. The reversal of 20709094 is 49090702.

It is a congruent 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, 43269 + ... + 43744.

It is an arithmetic number, because the mean of its divisors is an integer number (2349378).

Almost surely, 2^20709094 is an apocalyptic number.

20709094 is a deficient number, since it is larger than the sum of its proper divisors (16880954).

20709094 is a wasteful number, since it uses less digits than its factorization.

20709094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87039.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 20709094 is about 4550.7245576941. The cubic root of 20709094 is about 274.6125408502.

Adding to 20709094 its reverse (49090702), we get a palindrome (69799796).

The spelling of 20709094 in words is "twenty million, seven hundred nine thousand, ninety-four".