20034172 has 12 divisors (see below), whose sum is σ = 35242816. Its totient is φ = 9964800.

The previous prime is 20034149. The next prime is 20034187. The reversal of 20034172 is 27143002.

It is a zygodrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12204 + ... + 13747.

Almost surely, 2^20034172 is an apocalyptic number.

It is an amenable number.

20034172 is a deficient number, since it is larger than the sum of its proper divisors (15208644).

20034172 is a wasteful number, since it uses less digits than its factorization.

20034172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26148 (or 26146 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 20034172 is about 4475.9548701925. The cubic root of 20034172 is about 271.5962688272.

Adding to 20034172 its reverse (27143002), we get a palindrome (47177174).

The spelling of 20034172 in words is "twenty million, thirty-four thousand, one hundred seventy-two".