13299072 has 64 divisors (see below), whose sum is σ = 35985600. Its totient is φ = 4350464.

The previous prime is 13299071. The next prime is 13299089. The reversal of 13299072 is 27099231.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×13299072² = 353730632122368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13299071) 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 7 ways as a sum of consecutive naturals, for example, 22363 + ... + 22949.

It is an arithmetic number, because the mean of its divisors is an integer number (562275).

Almost surely, 2^13299072 is an apocalyptic number.

13299072 is a gapful number since it is divisible by the number (12) 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 13299072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17992800).

13299072 is an abundant number, since it is smaller than the sum of its proper divisors (22686528).

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

13299072 is an equidigital number, since it uses as much as digits as its factorization.

13299072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 13299072 is about 3646.7892727713. The cubic root of 13299072 is about 236.9229395712.

It can be divided in two parts, 1329 and 9072, that added together give a palindrome (10401).

The spelling of 13299072 in words is "thirteen million, two hundred ninety-nine thousand, seventy-two".