13379340 has 96 divisors (see below), whose sum is σ = 42759360. Its totient is φ = 3096576.

The previous prime is 13379329. The next prime is 13379341. The reversal of 13379340 is 4397331.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13379298 and 13379307.

It is not an unprimeable number, because it can be changed into a prime (13379341) 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, 12756 + ... + 13764.

It is an arithmetic number, because the mean of its divisors is an integer number (445410).

Almost surely, 2^13379340 is an apocalyptic number.

13379340 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 13379340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21379680).

13379340 is an abundant number, since it is smaller than the sum of its proper divisors (29380020).

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

13379340 is a wasteful number, since it uses less digits than its factorization.

13379340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 13379340 is about 3657.7780140408. The cubic root of 13379340 is about 237.3986418833.

Subtracting from 13379340 its reverse (4397331), we obtain a square (8982009 = 2997²).

The spelling of 13379340 in words is "thirteen million, three hundred seventy-nine thousand, three hundred forty".