13273920 has 168 divisors, whose sum is σ = 49926240. Its totient is φ = 3210240.

The previous prime is 13273901. The next prime is 13273933. The reversal of 13273920 is 2937231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31471 + ... + 31889.

It is an arithmetic number, because the mean of its divisors is an integer number (297180).

Almost surely, 2^13273920 is an apocalyptic number.

13273920 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 13273920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24963120).

13273920 is an abundant number, since it is smaller than the sum of its proper divisors (36652320).

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

13273920 is a wasteful number, since it uses less digits than its factorization.

13273920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 13273920 is about 3643.3391277783. The cubic root of 13273920 is about 236.7734843697.

The spelling of 13273920 in words is "thirteen million, two hundred seventy-three thousand, nine hundred twenty".