13748040 has 48 divisors (see below), whose sum is σ = 44682300. Its totient is φ = 3666048.

The previous prime is 13748029. The next prime is 13748047. The reversal of 13748040 is 4084731.

It can be written as a sum of positive squares in 2 ways, for example, as 12489156 + 1258884 = 3534^2 + 1122^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13747995 and 13748013.

It is not an unprimeable number, because it can be changed into a prime (13748047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18735 + ... + 19454.

Almost surely, 2^13748040 is an apocalyptic number.

13748040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13748040 is an abundant number, since it is smaller than the sum of its proper divisors (30934260).

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

13748040 is a wasteful number, since it uses less digits than its factorization.

13748040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38206 (or 38199 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 13748040 is about 3707.8349477829. The cubic root of 13748040 is about 239.5596090602.

The spelling of 13748040 in words is "thirteen million, seven hundred forty-eight thousand, forty".