13109380 has 24 divisors (see below), whose sum is σ = 29149848. Its totient is φ = 4935168.

The previous prime is 13109377. The next prime is 13109407. The reversal of 13109380 is 8390131.

It can be written as a sum of positive squares in 4 ways, for example, as 1806336 + 11303044 = 1344^2 + 3362^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18939 + ... + 19618.

It is an arithmetic number, because the mean of its divisors is an integer number (1214577).

Almost surely, 2^13109380 is an apocalyptic number.

13109380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13109380 is an abundant number, since it is smaller than the sum of its proper divisors (16040468).

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

13109380 is a wasteful number, since it uses less digits than its factorization.

13109380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38583 (or 38581 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 13109380 is about 3620.6877799667. The cubic root of 13109380 is about 235.7910867845.

The spelling of 13109380 in words is "thirteen million, one hundred nine thousand, three hundred eighty".