13418520 has 32 divisors (see below), whose sum is σ = 40255920. Its totient is φ = 3578240.

The previous prime is 13418513. The next prime is 13418551. The reversal of 13418520 is 2581431.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

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 congruent number.

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, 55791 + ... + 56030.

Almost surely, 2^13418520 is an apocalyptic number.

13418520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13418520 is an abundant number, since it is smaller than the sum of its proper divisors (26837400).

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

13418520 is a wasteful number, since it uses less digits than its factorization.

13418520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111835 (or 111831 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 13418520 is about 3663.1298093297. The cubic root of 13418520 is about 237.6301484264.

Adding to 13418520 its reverse (2581431), we get a palindrome (15999951).

The spelling of 13418520 in words is "thirteen million, four hundred eighteen thousand, five hundred twenty".