13260420 has 72 divisors (see below), whose sum is σ = 41985216. Its totient is φ = 3381312.

The previous prime is 13260413. The next prime is 13260421. The reversal of 13260420 is 2406231.

It is a happy number.

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 = 13260393 and 13260402.

It is not an unprimeable number, because it can be changed into a prime (13260421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2539 + ... + 5741.

It is an arithmetic number, because the mean of its divisors is an integer number (583128).

Almost surely, 2^13260420 is an apocalyptic number.

13260420 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 13260420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20992608).

13260420 is an abundant number, since it is smaller than the sum of its proper divisors (28724796).

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

13260420 is a wasteful number, since it uses less digits than its factorization.

13260420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241 (or 3236 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 13260420 is about 3641.4859604288. The cubic root of 13260420 is about 236.6931884140.

Adding to 13260420 its reverse (2406231), we get a palindrome (15666651).

The spelling of 13260420 in words is "thirteen million, two hundred sixty thousand, four hundred twenty".