13347640 has 16 divisors (see below), whose sum is σ = 30032280. Its totient is φ = 5339040.

The previous prime is 13347637. The next prime is 13347641. The reversal of 13347640 is 4674331.

It is a junction number, because it is equal to n+sod(n) for n = 13347599 and 13347608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13347641) 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, 166806 + ... + 166885.

Almost surely, 2^13347640 is an apocalyptic number.

13347640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13347640 is an abundant number, since it is smaller than the sum of its proper divisors (16684640).

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

13347640 is a wasteful number, since it uses less digits than its factorization.

13347640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333702 (or 333698 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 13347640 is about 3653.4422124895. The cubic root of 13347640 is about 237.2110021277.

The spelling of 13347640 in words is "thirteen million, three hundred forty-seven thousand, six hundred forty".