20712194 has 8 divisors (see below), whose sum is σ = 31101840. Its totient is φ = 10344916.

The previous prime is 20712187. The next prime is 20712199. The reversal of 20712194 is 49121702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20712199) 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, 3044 + ... + 7119.

It is an arithmetic number, because the mean of its divisors is an integer number (3887730).

Almost surely, 2^20712194 is an apocalyptic number.

20712194 is a deficient number, since it is larger than the sum of its proper divisors (10389646).

20712194 is a wasteful number, since it uses less digits than its factorization.

20712194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11184.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 20712194 is about 4551.0651500500. The cubic root of 20712194 is about 274.6262426632.

Adding to 20712194 its reverse (49121702), we get a palindrome (69833896).

The spelling of 20712194 in words is "twenty million, seven hundred twelve thousand, one hundred ninety-four".