20194256 has 20 divisors (see below), whose sum is σ = 39208800. Its totient is φ = 10075872.

The previous prime is 20194241. The next prime is 20194259. The reversal of 20194256 is 65249102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20194259) 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, 8885 + ... + 10923.

It is an arithmetic number, because the mean of its divisors is an integer number (1960440).

Almost surely, 2^20194256 is an apocalyptic number.

It is an amenable number.

20194256 is a deficient number, since it is larger than the sum of its proper divisors (19014544).

20194256 is a wasteful number, since it uses less digits than its factorization.

20194256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2666 (or 2660 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 20194256 is about 4493.8019538026. The cubic root of 20194256 is about 272.3177514943.

The spelling of 20194256 in words is "twenty million, one hundred ninety-four thousand, two hundred fifty-six".