13260870 has 144 divisors (see below), whose sum is σ = 41827968. Its totient is φ = 2903040.

The previous prime is 13260869. The next prime is 13260881. The reversal of 13260870 is 7806231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 136662 + ... + 136758.

It is an arithmetic number, because the mean of its divisors is an integer number (290472).

Almost surely, 2^13260870 is an apocalyptic number.

13260870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13260870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20913984).

13260870 is an abundant number, since it is smaller than the sum of its proper divisors (28567098).

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

13260870 is a wasteful number, since it uses less digits than its factorization.

13260870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 13260870 is about 3641.5477478677. The cubic root of 13260870 is about 236.6958658236.

The spelling of 13260870 in words is "thirteen million, two hundred sixty thousand, eight hundred seventy".