20014172 has 6 divisors (see below), whose sum is σ = 35024808. Its totient is φ = 10007084.

The previous prime is 20014171. The next prime is 20014187. The reversal of 20014172 is 27141002.

It is a self number, because there is not a number n which added to its sum of digits gives 20014172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20014171) by changing a digit.

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, 2501768 + ... + 2501775.

It is an arithmetic number, because the mean of its divisors is an integer number (5837468).

Almost surely, 2^20014172 is an apocalyptic number.

It is an amenable number.

20014172 is a deficient number, since it is larger than the sum of its proper divisors (15010636).

20014172 is a wasteful number, since it uses less digits than its factorization.

20014172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003547 (or 5003545 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 20014172 is about 4473.7201521776. The cubic root of 20014172 is about 271.5058610657.

Adding to 20014172 its reverse (27141002), we get a palindrome (47155174).

The spelling of 20014172 in words is "twenty million, fourteen thousand, one hundred seventy-two".