13378830 has 64 divisors (see below), whose sum is σ = 34966080. Its totient is φ = 3262464.

The previous prime is 13378817. The next prime is 13378837. The reversal of 13378830 is 3887331.

It is a junction number, because it is equal to n+sod(n) for n = 13378791 and 13378800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13378837) 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, 18516 + ... + 19224.

It is an arithmetic number, because the mean of its divisors is an integer number (546345).

Almost surely, 2^13378830 is an apocalyptic number.

13378830 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 13378830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17483040).

13378830 is an abundant number, since it is smaller than the sum of its proper divisors (21587250).

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

13378830 is a wasteful number, since it uses less digits than its factorization.

13378830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 13378830 is about 3657.7082989216. The cubic root of 13378830 is about 237.3956254205.

The spelling of 13378830 in words is "thirteen million, three hundred seventy-eight thousand, eight hundred thirty".