13128810 has 64 divisors (see below), whose sum is σ = 34283520. Its totient is φ = 3205440.

The previous prime is 13128809. The next prime is 13128827. The reversal of 13128810 is 1882131.

It is a super-2 number, since 2×13128810² = 344731304032200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17299 + ... + 18041.

It is an arithmetic number, because the mean of its divisors is an integer number (535680).

Almost surely, 2^13128810 is an apocalyptic number.

13128810 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 13128810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17141760).

13128810 is an abundant number, since it is smaller than the sum of its proper divisors (21154710).

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

13128810 is a wasteful number, since it uses less digits than its factorization.

13128810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 13128810 is about 3623.3699783489. The cubic root of 13128810 is about 235.9075214604.

The spelling of 13128810 in words is "thirteen million, one hundred twenty-eight thousand, eight hundred ten".