20704294 has 16 divisors (see below), whose sum is σ = 33646032. Its totient is φ = 9498528.

The previous prime is 20704279. The next prime is 20704309. The reversal of 20704294 is 49240702.

It is an interprime number because it is at equal distance from previous prime (20704279) and next prime (20704309).

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, 2197 + ... + 6799.

It is an arithmetic number, because the mean of its divisors is an integer number (2102877).

Almost surely, 2^20704294 is an apocalyptic number.

20704294 is a deficient number, since it is larger than the sum of its proper divisors (12941738).

20704294 is a wasteful number, since it uses less digits than its factorization.

20704294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4791.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20704294 is about 4550.1971385864. The cubic root of 20704294 is about 274.5913224416.

Adding to 20704294 its reverse (49240702), we get a palindrome (69944996).

The spelling of 20704294 in words is "twenty million, seven hundred four thousand, two hundred ninety-four".