13394040 has 128 divisors (see below), whose sum is σ = 44755200. Its totient is φ = 3179520.

The previous prime is 13394023. The next prime is 13394041. The reversal of 13394040 is 4049331.

Added to its reverse (4049331) it gives a triangular number (17443371 = T₅₉₀₆).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 13394040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13394041) 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, 96291 + ... + 96429.

It is an arithmetic number, because the mean of its divisors is an integer number (349650).

Almost surely, 2^13394040 is an apocalyptic number.

13394040 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 13394040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22377600).

13394040 is an abundant number, since it is smaller than the sum of its proper divisors (31361160).

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

13394040 is a wasteful number, since it uses less digits than its factorization.

13394040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 13394040 is about 3659.7868790409. The cubic root of 13394040 is about 237.4855540613.

Adding to 13394040 its reverse (4049331), we get a triangular number (17443371 = T₅₉₀₆).

The spelling of 13394040 in words is "thirteen million, three hundred ninety-four thousand, forty".