13045320 has 128 divisors (see below), whose sum is σ = 44582400. Its totient is φ = 3391488.

The previous prime is 13045309. The next prime is 13045321. The reversal of 13045320 is 2354031.

13045320 is a `hidden beast` number, since 130 + 4 + 532 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 13045293 and 13045302.

It is not an unprimeable number, because it can be changed into a prime (13045321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50632 + ... + 50888.

It is an arithmetic number, because the mean of its divisors is an integer number (348300).

Almost surely, 2^13045320 is an apocalyptic number.

13045320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13045320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22291200).

13045320 is an abundant number, since it is smaller than the sum of its proper divisors (31537080).

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

13045320 is a wasteful number, since it uses less digits than its factorization.

13045320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 13045320 is about 3611.8305608099. The cubic root of 13045320 is about 235.4063890189.

Adding to 13045320 its reverse (2354031), we get a palindrome (15399351).

The spelling of 13045320 in words is "thirteen million, forty-five thousand, three hundred twenty".