13070304 has 72 divisors (see below), whose sum is σ = 40039272. Its totient is φ = 4020480.

The previous prime is 13070303. The next prime is 13070339. The reversal of 13070304 is 40307031.

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 not an unprimeable number, because it can be changed into a prime (13070303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1999 + ... + 5489.

It is an arithmetic number, because the mean of its divisors is an integer number (556101).

Almost surely, 2^13070304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13070304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20019636).

13070304 is an abundant number, since it is smaller than the sum of its proper divisors (26968968).

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

13070304 is a wasteful number, since it uses less digits than its factorization.

13070304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3520 (or 3509 counting only the distinct ones).

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

The square root of 13070304 is about 3615.2875404316. The cubic root of 13070304 is about 235.5565742345.

Adding to 13070304 its reverse (40307031), we get a palindrome (53377335).

The spelling of 13070304 in words is "thirteen million, seventy thousand, three hundred four".