13109040 has 300 divisors, whose sum is σ = 55274736. Its totient is φ = 2820096.

The previous prime is 13109021. The next prime is 13109051. The reversal of 13109040 is 4090131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 6.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 771112 + ... + 771128.

Almost surely, 2^13109040 is an apocalyptic number.

13109040 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 13109040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27637368).

13109040 is an abundant number, since it is smaller than the sum of its proper divisors (42165696).

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

13109040 is a wasteful number, since it uses less digits than its factorization.

13109040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 13109040 is about 3620.6408272570. The cubic root of 13109040 is about 235.7890483036.

Adding to 13109040 its reverse (4090131), we get a palindrome (17199171).

The spelling of 13109040 in words is "thirteen million, one hundred nine thousand, forty".