13418340 has 48 divisors (see below), whose sum is σ = 40463808. Its totient is φ = 3302784.

The previous prime is 13418333. The next prime is 13418341. The reversal of 13418340 is 4381431.

It is a self number, because there is not a number n which added to its sum of digits gives 13418340.

It is not an unprimeable number, because it can be changed into a prime (13418341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7822 + ... + 9381.

It is an arithmetic number, because the mean of its divisors is an integer number (842996).

Almost surely, 2^13418340 is an apocalyptic number.

13418340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13418340 is an abundant number, since it is smaller than the sum of its proper divisors (27045468).

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

13418340 is a wasteful number, since it uses less digits than its factorization.

13418340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17228 (or 17226 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 13418340 is about 3663.1052400934. The cubic root of 13418340 is about 237.6290858746.

Adding to 13418340 its reverse (4381431), we get a palindrome (17799771).

The spelling of 13418340 in words is "thirteen million, four hundred eighteen thousand, three hundred forty".