13073520 has 160 divisors (see below), whose sum is σ = 44282880. Its totient is φ = 3179520.

The previous prime is 13073513. The next prime is 13073549. The reversal of 13073520 is 2537031.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 214290 + ... + 214350.

It is an arithmetic number, because the mean of its divisors is an integer number (276768).

Almost surely, 2^13073520 is an apocalyptic number.

13073520 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 13073520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22141440).

13073520 is an abundant number, since it is smaller than the sum of its proper divisors (31209360).

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

13073520 is a wasteful number, since it uses less digits than its factorization.

13073520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 13073520 is about 3615.7322909751. The cubic root of 13073520 is about 235.5758925257.

The spelling of 13073520 in words is "thirteen million, seventy-three thousand, five hundred twenty".