13743240 has 64 divisors (see below), whose sum is σ = 47122560. Its totient is φ = 3141120.

The previous prime is 13743221. The next prime is 13743263. The reversal of 13743240 is 4234731.

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

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 13743240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7341 + ... + 9020.

It is an arithmetic number, because the mean of its divisors is an integer number (736290).

Almost surely, 2^13743240 is an apocalyptic number.

13743240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13743240 is an abundant number, since it is smaller than the sum of its proper divisors (33379320).

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

13743240 is a wasteful number, since it uses less digits than its factorization.

13743240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16382 (or 16378 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 13743240 is about 3707.1876132724. The cubic root of 13743240 is about 239.5317258135.

Adding to 13743240 its reverse (4234731), we get a palindrome (17977971).

The spelling of 13743240 in words is "thirteen million, seven hundred forty-three thousand, two hundred forty".