13667240 has 16 divisors (see below), whose sum is σ = 30751380. Its totient is φ = 5466880.

The previous prime is 13667239. The next prime is 13667243. The reversal of 13667240 is 4276631.

It can be written as a sum of positive squares in 2 ways, for example, as 12630916 + 1036324 = 3554^2 + 1018^2 .

It is not an unprimeable number, because it can be changed into a prime (13667243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170801 + ... + 170880.

Almost surely, 2^13667240 is an apocalyptic number.

13667240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13667240 is an abundant number, since it is smaller than the sum of its proper divisors (17084140).

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

13667240 is a wasteful number, since it uses less digits than its factorization.

13667240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341692 (or 341688 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 13667240 is about 3696.9230449118. The cubic root of 13667240 is about 239.0893732731.

It can be divided in two parts, 136 and 67240, that added together give a palindrome (67376).

The spelling of 13667240 in words is "thirteen million, six hundred sixty-seven thousand, two hundred forty".