13272920 has 64 divisors (see below), whose sum is σ = 32076000. Its totient is φ = 4925440.

The previous prime is 13272913. The next prime is 13272943. The reversal of 13272920 is 2927231.

It is a self number, because there is not a number n which added to its sum of digits gives 13272920.

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 15 ways as a sum of consecutive naturals, for example, 89006 + ... + 89154.

Almost surely, 2^13272920 is an apocalyptic number.

13272920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13272920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16038000).

13272920 is an abundant number, since it is smaller than the sum of its proper divisors (18803080).

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

13272920 is a wasteful number, since it uses less digits than its factorization.

13272920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 13272920 is about 3643.2018884492. The cubic root of 13272920 is about 236.7675383887.

The spelling of 13272920 in words is "thirteen million, two hundred seventy-two thousand, nine hundred twenty".