20194886 has 4 divisors (see below), whose sum is σ = 30292332. Its totient is φ = 10097442.

The previous prime is 20194879. The next prime is 20194903. The reversal of 20194886 is 68849102.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5048720 + ... + 5048723.

It is an arithmetic number, because the mean of its divisors is an integer number (7573083).

Almost surely, 2^20194886 is an apocalyptic number.

20194886 is a deficient number, since it is larger than the sum of its proper divisors (10097446).

20194886 is a wasteful number, since it uses less digits than its factorization.

20194886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10097445.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 20194886 is about 4493.8720498029. The cubic root of 20194886 is about 272.3205832962.

The spelling of 20194886 in words is "twenty million, one hundred ninety-four thousand, eight hundred eighty-six".