13307040 has 72 divisors (see below), whose sum is σ = 45415188. Its totient is φ = 3548160.

The previous prime is 13307017. The next prime is 13307051. The reversal of 13307040 is 4070331.

It can be written as a sum of positive squares in 2 ways, for example, as 12362256 + 944784 = 3516^2 + 972^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3181 + ... + 6060.

Almost surely, 2^13307040 is an apocalyptic number.

13307040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13307040 is an abundant number, since it is smaller than the sum of its proper divisors (32108148).

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

13307040 is a wasteful number, since it uses less digits than its factorization.

13307040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9262 (or 9251 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 13307040 is about 3647.8815770252. The cubic root of 13307040 is about 236.9702467589.

Adding to 13307040 its reverse (4070331), we get a palindrome (17377371).

The spelling of 13307040 in words is "thirteen million, three hundred seven thousand, forty".