13298920 has 16 divisors (see below), whose sum is σ = 29922660. Its totient is φ = 5319552.

The previous prime is 13298903. The next prime is 13298927. The reversal of 13298920 is 2989231.

It can be written as a sum of positive squares in 2 ways, for example, as 11655396 + 1643524 = 3414^2 + 1282^2 .

It is a super-2 number, since 2×13298920² = 353722546332800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13298927) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 166197 + ... + 166276.

Almost surely, 2^13298920 is an apocalyptic number.

13298920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13298920 is an abundant number, since it is smaller than the sum of its proper divisors (16623740).

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

13298920 is a wasteful number, since it uses less digits than its factorization.

13298920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332484 (or 332480 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 13298920 is about 3646.7684324618. The cubic root of 13298920 is about 236.9220369412.

The spelling of 13298920 in words is "thirteen million, two hundred ninety-eight thousand, nine hundred twenty".