13262720 has 128 divisors (see below), whose sum is σ = 35691840. Its totient is φ = 4685824.

The previous prime is 13262719. The next prime is 13262723. The reversal of 13262720 is 2726231.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13262723) by changing a digit.

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, 250214 + ... + 250266.

Almost surely, 2^13262720 is an apocalyptic number.

13262720 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 13262720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17845920).

13262720 is an abundant number, since it is smaller than the sum of its proper divisors (22429120).

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

13262720 is a wasteful number, since it uses less digits than its factorization.

13262720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 13262720 is about 3641.8017518805. The cubic root of 13262720 is about 236.7068723159.

Adding to 13262720 its reverse (2726231), we get a palindrome (15988951).

The spelling of 13262720 in words is "thirteen million, two hundred sixty-two thousand, seven hundred twenty".