17272120 has 16 divisors (see below), whose sum is σ = 38862360. Its totient is φ = 6908832.

The previous prime is 17272109. The next prime is 17272133. The reversal of 17272120 is 2127271.

It is a super-2 number, since 2×17272120² = 596652258588800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 17272091 and 17272100.

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 in 3 ways as a sum of consecutive naturals, for example, 215862 + ... + 215941.

Almost surely, 2^17272120 is an apocalyptic number.

17272120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17272120 is an abundant number, since it is smaller than the sum of its proper divisors (21590240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17272120 is a wasteful number, since it uses less digits than its factorization.

17272120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431814 (or 431810 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 17272120 is about 4155.9740133933. The cubic root of 17272120 is about 258.4928583441.

Adding to 17272120 its reverse (2127271), we get a palindrome (19399391).

The spelling of 17272120 in words is "seventeen million, two hundred seventy-two thousand, one hundred twenty".