13353640 has 32 divisors (see below), whose sum is σ = 30689280. Its totient is φ = 5227072.

The previous prime is 13353629. The next prime is 13353643. The reversal of 13353640 is 4635331.

It is not an unprimeable number, because it can be changed into a prime (13353643) 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, 1672 + ... + 5431.

It is an arithmetic number, because the mean of its divisors is an integer number (959040).

Almost surely, 2^13353640 is an apocalyptic number.

13353640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13353640 is an abundant number, since it is smaller than the sum of its proper divisors (17335640).

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

13353640 is a wasteful number, since it uses less digits than its factorization.

13353640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7161 (or 7157 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 13353640 is about 3654.2632636415. The cubic root of 13353640 is about 237.2465403154.

Adding to 13353640 its reverse (4635331), we get a palindrome (17988971).

The spelling of 13353640 in words is "thirteen million, three hundred fifty-three thousand, six hundred forty".