13304340 has 72 divisors (see below), whose sum is σ = 46126080. Its totient is φ = 3040704.

The previous prime is 13304303. The next prime is 13304383. The reversal of 13304340 is 4340331.

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 23 ways as a sum of consecutive naturals, for example, 4020 + ... + 6539.

It is an arithmetic number, because the mean of its divisors is an integer number (640640).

Almost surely, 2^13304340 is an apocalyptic number.

13304340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13304340 is an abundant number, since it is smaller than the sum of its proper divisors (32821740).

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

13304340 is a wasteful number, since it uses less digits than its factorization.

13304340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10581 (or 10576 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 13304340 is about 3647.5114804480. The cubic root of 13304340 is about 236.9542185778.

Adding to 13304340 its reverse (4340331), we get a palindrome (17644671).

The spelling of 13304340 in words is "thirteen million, three hundred four thousand, three hundred forty".