20194288 has 10 divisors (see below), whose sum is σ = 39126464. Its totient is φ = 10097136.

The previous prime is 20194277. The next prime is 20194297. The reversal of 20194288 is 88249102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631056 + ... + 631087.

Almost surely, 2^20194288 is an apocalyptic number.

It is an amenable number.

20194288 is a deficient number, since it is larger than the sum of its proper divisors (18932176).

20194288 is a wasteful number, since it uses less digits than its factorization.

20194288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262151 (or 1262145 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 20194288 is about 4493.8055142607. The cubic root of 20194288 is about 272.3178953332.

The spelling of 20194288 in words is "twenty million, one hundred ninety-four thousand, two hundred eighty-eight".