12723040 has 48 divisors (see below), whose sum is σ = 32795280. Its totient is φ = 4625920.

The previous prime is 12723031. The next prime is 12723059. The reversal of 12723040 is 4032721.

It is a junction number, because it is equal to n+sod(n) for n = 12722999 and 12723017.

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, 1855 + ... + 5374.

It is an arithmetic number, because the mean of its divisors is an integer number (683235).

Almost surely, 2^12723040 is an apocalyptic number.

12723040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12723040 is an abundant number, since it is smaller than the sum of its proper divisors (20072240).

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

12723040 is a wasteful number, since it uses less digits than its factorization.

12723040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7255 (or 7247 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 12723040 is about 3566.9370614016. The cubic root of 12723040 is about 233.4516588068.

Adding to 12723040 its reverse (4032721), we get a palindrome (16755761).

The spelling of 12723040 in words is "twelve million, seven hundred twenty-three thousand, forty".